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Something to Chat About

October 12, 2018 By Blake Goll

Yellow-breasted Chat (Hatch Year) banded on Tuesday at Rushton. Photo by Blake Goll

Another dreary, drippy morning on Tuesday surprisingly produced a season record of 54 birds spanning a dazzling 20 species.  Highlights included Gray-cheeked Thrushes, another prized Connecticut Warbler, the first Yellow-rumped Warbler of the season, and an increase in numbers of individuals of several species as compared to previous years—including Black-throated Blue Warblers, Indigo Buntings, and Eastern Towhees.  The grande finale was a glorious Yellow-breasted Chat, the second ever for Rushton!

The Yellow-breasted Chat is a large, chunky warbler with an atypical song that is more similar to the varied, staccato songs of catbirds and mockingbirds than to its more refined sounding relatives in the warbler family.  Dining mostly on spiders and insects in dense thickets, it also feasts on berries as evidenced by the traces of wild grapes on this chat’s bill.
Although this was undoubtedly a migrant, chats could theoretically breed at Rushton; we have everything a chat could ever want like dense shrubbery of blackberry bushes, sumac, multiflora rose, and honeysuckle.  Perhaps on its way back north from winter in the tropics, it will remember Rushton and decide to start a family here.  Never mind those pushy jewelers peddling their silver bracelets from the shady shack in the hedgerow.
Connecticut Warbler banded at Rushton. Photo by Blake Goll
Female Eastern Towhee banded on Tuesday. Photo by Blake Goll
Gray-cheeked Thrush banded Tuesday at Rushton. Photo by Blake Goll
One of our banding volunteers carefully blows the feathers aside to assess fat stores of a migratory Northern Waterthrush. Photo by Blake Goll
Students from Strath Haven High School experienced nature like never before as they crowded around the banding table in their pajamas (they mumbled something about homecoming school spirit week).  They were touched by these creatures as they guessed how many nickels a Common Yellowthroat weighed and learned of their arduous journeys to Central America.
Strath Haven student releasing a Common Yellowthroat on Tuesday. Photo by Blake Goll
The nets were still on fire on Wednesday with 42 new birds, 7 recaps, and a total of 14 species.  As I opened the woodland nets in the dawn haze, I got chills as high-pitched “weep” calls echoed from every corner of the dark woods.  It was as if I was surrounded by spring peepers in a second spring.  They were the distinct contact calls of Swainson’s Thrush, reserved specifically for migration.  These were birds that probably just touched down after a long night of travel and were checking in with each other before breakfast as the sun came up.
White-throated Sparrow banded at Rushton. Photo by Celeste Sheehan
White-throated Sparrows are now outnumbering Gray Catbirds as the fall migration plays out.  Rain kept us from banding on Thursday, but we will be back again next week, and the next and the next.   If you have been meaning to stop by to see us, you have three more weeks: every Tuesday and Thursday morning from 6:30-11 am.
Dewy dahlia bud at Rushton Farm. Photo by Blake Goll
There’s a lot going on in the woods,
Blake
As a reminder to email subscribers, click on the title of the blog post to be redirected to the website where things often display better than in your email. Thanks!
Rushton Conservation Center and dahlias for days. Photo by Blake Goll

Filed Under: Bird Banding, Bird ecology, migration Tagged With: Bird banding, kids and birds, Rushton Farm, songbird banding, students and birds, yellow-breasted chat

If Black-throated Blues are Here, Fall is Near

August 30, 2018 By Blake Goll

Black-throated Blue Warbler banded at Rushton Woods Preserve this spring.  Photo by Blake Goll/Staff

Even though the autumn equinox has not yet occurred and you’re still wistfully packing your bags for one last summer fling at the beach this weekend, billions of songbirds have started the silent nocturnal procession south.  Though we are not lucky enough to be graced by the steely gray tuxedos of the dapper Black-throated Blue Warbler during their nuptial season, they are one of the first warblers to appear at Rushton during fall migration.  After nesting in higher elevations of mixed hardwood and evergreen forests — the kind with yellow birch towering over thick tangles of mountain laurel and rhodedendron— they often gravitate toward early successional shrubby areas with their “teenage” offspring.  Consequently, these young birds probably recognize these types of shrubby habitats as safe havens during their first migration.
Rushton got shrub. The hedgerows of Rushton where we operate fourteen mist nets  are largely composed of early successional habitat.  Maybe that’s why we often get the younger, what we call Second Year or Hatch Year, Black-throated Blues.  These have greenish edging on some of the feathers and feather coverts as compared to the entirely blue edged adults.  Compare the two photos below of the older male we caught in spring and the younger male we caught this morning.  Can you tell the difference?  If not, you would not make a good female songbird; you must know when to swipe left on a sub-par mate by looks alone.  Yes, the natural world is a place of unforgiving vanity.

Young (Hatch Year) Black-throated Blue Warbler banded at Rushton today (8/30/18). Photo by Blake Goll/Staff
Adult (After Second Year) Black-throated Blue Warbler banded at Rushton in May 2018. Photo by Blake Goll/Staff

On this steamy opening day of our fall banding season, we also blinged out, skulled, and aged many young Gray Catbirds, Wood Thrush, Common Yellowthroats, American Robins, and a lovely American Goldfinch.  We watched the mercury closely and closed early to keep our birds cool and safe.  Still our total was 15 new birds of 7 species.

Ageing a Gray Catbird today (8/30) at Rushton. Photo by Blake Goll/Staff
Alison skulling a Gray Catbird today. In other words, she is looking through the transparent skin under the feathers to determine the level of ossification of the skull, which corresponds to age. Photo by Blake Goll/Staff
Ageing a Wood Thrush today at Rushton. Photo by Blake Goll/Staff

Join the fun Tuesday and Thursday mornings at Rushton Woods Preserve now until November 1 from sunrise until about 11 am.
There’s a lot going on in the woods,
Blake
 

Filed Under: Bird Banding, Bird ecology, migration Tagged With: Bird banding, Black-throated Blue warbler, early successional shrub habitat, fall songbird migration, Rushton Farm

A Toast to Our Birds of 2017 and the Peculiar Tower Atop the Greenhouse

December 20, 2017 By Blake Goll

Ruby-crowned Kinglet feeding at Rushton November 3rd. Photo by Celeste Sheehan
Ruby-crowned Kinglet feeding at Rushton November 3rd. Photo by Celeste Sheehan

I like winter.  As December rolls around and the snow sparkles and swirls outside my window, I have no choice but to stay inside and reflect on the year.  And what a year the Rushton banding crew has had, with wonderful memories galore to keep us warm as the icicles fall.

 Speaking of fall, we finished out this fall banding season with a catch total of 1,060 birds including 158 recaptures.  Species diversity was 52 strong, with the top five customers including Gray Catbird (245!), White-throated Sparrow, Song Sparrow, Ruby-crowned Kinglet and Common Yellowthroat.  Brand new to the station was a devastatingly dapper Blue-headed Vireo, and a Cedar Waxwing was the other handsome ornament that does not typically grace our nets.  Other notables included thirteen Field Sparrows (a species declining in PA) and a healthy thrush population including 23 Veery, 25 Wood Thrush, and 16 Swainson’s Thrush.  Much to my joy we caught a station record of four Winter Wrens— not a partridge in a pear tree but my favorite nonetheless.
Blue-headed Vireo banded at Rushton in October. Photo by Blake Goll
Blue-headed Vireo banded at Rushton in October. Photo by Blake Goll
Cedar Waxwing banded in October. Photo by Blake Goll
Cedar Waxwing banded at Rushton in October. Photo by Blake Goll
Field Sparrow banded in October. Photo by Blake Goll
Field Sparrow banded at Rushton in October. Photo by Blake Goll
Swainson's Thrush banded in September. Photo by UPenn student, Yimei Li
Swainson’s Thrush banded at Rushton in September. Photo by UPenn student, Yimei Li
Connecticut Warbler banded in October. Photo by Blake Goll
Connecticut Warbler banded at Rushton in October. Photo by Blake Goll

The elusive Connecticut Warbler showed up on the 5th of October, a whole month later than its usual autumn debut at Rushton, possibly because of the wild and wacky fall weather.  It was a balmy 60 degrees on that morning whereas a few days prior the mercury started out in the 40’s, chilly enough for the crickets to wait until much later in the day to pick up their strings.
Warbler numbers at Rushton always seem a bit more depauperate each year, but especially noticeable has been the decrease in our Black-throated blue catch with only eight individuals banded this fall.   Does this indicate a decline in this species or are they simply not using Rushton as a stopover site? One window collision study has shown that this particular warbler is among the “super-colliders”, a few species that for whatever reason have a higher rate of mortality from communication towers.  Could this be why we see less of them?  On a positive note, thanks to the independent research of a single mom named Joelle Gehring, the Federal Communications Commission has approved changes that save birds without reducing air safety, i.e., removing steady burning lights from communication towers to reduce bird mortality by 70%.

Black-throated Blue Warbler banded in October. Photo by Blake Goll
Black-throated Blue Warbler banded at Rushton in October. Photo by Blake Goll
Northern Parulas banded in September at Rushton. Photo by Blake Goll
Northern Parulas banded in September at Rushton. Photo by Blake Goll

Another disappointingly underrepresented species this year at Rushton was the Northern Saw-whet Owl.  In seven weeks of owl banding we only captured 12 saw-whets.   To be fair, we were expecting this since every other year is a good year for this cyclical species, which is essentially tied to the natural seed production of the boreal forest.  Last year, we banded 95 saw-whet owls.
When the trees have a good year, the seed collecting mice have a banner year and the mouse munching owls make out.  This past breeding season was poor for the saw-whets, likely because the trees did not give a mouse a cookie.  As a result of few new baby owls competing for food combined with mild weather in the Northeast this fall, most of the adult owls did not feel like migrating.  A great example is the one foreign recovery we had this year; an owl we banded last year around the traditional peak of saw-whet owl migration (end of October/beginning of November) was picked up in Canada about that same time this year, with no indication of any migratory itch.

Northern saw-whet Owl banded in November. Photo by Blake Goll
Northern Saw-whet Owl banded at Rushton in November. Photo by Blake Goll

Going back to our review of songbird banding, the age ratio of our catch this fall was, as usual, heavily skewed toward Hatch Year (birds in their first fall)— a whopping 86 %.  Compare that to our spring, which typically consists of only about 60 % of these young birds, mostly due to the fact that many young birds do not make it through that first fall migration, thanks in part to what we’ll call anthropogenic complications.
At Rushton, we’re just helping to monitor the birds while encouraging people to learn about them.  Birds are the global heartbeat. “As we learn about birds we learn about ourselves and the planet”, says John Fitzpatrick, Director of Cornell Lab of Ornithology.  They teach us how to manage habitat and ecosystems, and they teach us how our actions affect Earth.  Unfortunately, as the human population has doubled in the past 50 years, bird populations have declined by 50 percent.  Habitat loss and urban sprawl have taken the worst tolls, especially on our neotropical species whose great migrations bring them up against even more human perils.

Bird Mortality Infographic by Smithsonian
Bird Mortality Infographic by Smithsonian

One-third of North American bird species need urgent conservation to avoid extinction.  One way to expedite bird conservation is to learn faster about where they are going.  This is where the peculiar tower atop the Rushton greenhouse comes into play.  It is the first of a line of 20 automated radio telemetry receiver stations that now stretches across Pennsylvania from the Southeast to Lake Erie.
This array is part of the new cutting edge wildlife tracking technology called Motus that — although has only been around for a few years — has managed to generate over 350 million data hits from 350 receiving stations in the western hemisphere, putting it on track to be one of the world’s largest collaborative research and conservation efforts.  The system uses the world’s smallest transmitters called nanotags that can be made tiny enough to sit on the back of a monarch butterfly during its migration.

Monarch on dahlia at Rushton in October. Photo by Blake Goll
Monarch on dahlia at Rushton in October. Photo by Blake Goll

Below is Bird Studies Canada’s spectacular new YouTube video about the Motus Wildlife Tracking System.  In addition, Scott Weidensaul, author and naturalist, elaborates on Motus in our Sycamore newsletter here.

The line of Motus towers across PA (which was mostly erected in just 17 days this summer) was the work of the Northeast Motus Collaboration, an impressive new partnership including Willistown Conservation Trust, Ned Smith Center for Nature and Art, Project Owlnet and Bird Studies Canada.  It represents the first statewide effort of its kind.  The towers are already revealing important information that traditional banding simply cannot; birds we never knew flew through PA indeed do, including Whimbrels and even a Yellow-headed Blackbird.  Specifically our tower at Rushton has recorded nocturnal pings from tagged flyovers including many Redknots (a federally threatened shorebird), King Rails, Gray-cheeked Thrush from Colombia and even Silver-haired bats.

Lisa Kiziuk. Director of WCT Bird Conservation Program, Dave Brinker of Project Owlnet and Scott Weidensaul of Ned Smith Center for Nature and Art, in front of the Rushton Motus tower
Lisa Kiziuk (Director of WCT’s Bird Conservation Program), Dave Brinker of Project Owlnet and Scott Weidensaul of Ned Smith Center for Nature and Art, in front of the Rushton Motus tower on the greenhouse.  The brains behind the Northeast Motus Collaboration!
Map showing existing Motus towers before our PA array
Existing Motus towers before our PA array
Map showing Motus towers in the Northeast after installation of our PA array
Motus towers in the Northeast after installation of our PA array
Nanotag on a Bay-breasted Warbler. Photo by Blake Goll
Nanotag on a Bay-breasted Warbler. Photo by Blake Goll
Different sizes of nanotags. Photo by Blake Goll
Different sizes of nanotags. Photo by Blake Goll

Such sophisticated tracking technology is unveiling the migratory stopover sites and routes that birds use.  This knowledge is vital to saving habitat in today’s world where energy infrastructure and development projects seem to pop up any and everywhere.  For example, the enigmatic Connecticut Warbler has recently been confirmed by Motus research as a seafarer much like the Blackpoll Warbler, traveling between one and two thousand miles over the merciless Atlantic Ocean from the Northeast.   They eventually ride the tradewinds southwest over Bermudan airspace directly into Cuba, Haiti or the Dominican Republic after two days of ocean flight.
Evidently, Connecticut warblers use the Caribbean as stopover habitat along the ocean flyway before continuing on to the Amazon rainforest for the winter.  So you see, not only is it important to focus conservation efforts for this particular species in the Amazon but also in the newly revealed Caribbean hideout.

Connecticut Warbler banded in October. Photo by Blake Goll
Connecticut Warbler banded at Rushton  in October. Photo by Blake Goll

As Joe Smith referenced in his excellent blog for Nature.org,  Columbus and his voyagers once followed “the great flocks of birds” that were flying over the ocean toward the Caribbean Islands during the peak of fall migration.  Though we may never know  how great the great flocks of 1492 surely must have been, we can hope that Motus will help us preserve some of the migratory magnificence that has forever been one of Earth’s most awe-inspiring cycles.
Please enjoy the following collection of photos from autumn at Rushton with excerpts from our daily banding reports: 
August 31st: This morning marked the dawn of another new autumn in Rushton Woods.  Well seasoned banders arose expectantly minutes before their alarms went off and reported for duty at civil twilight in the heavy wet morning.

Todd Alleger extracting a bird from the nets. Photo by Catie Ritchie
Bander, Todd Alleger, extracting a catbird from the nets. Photo by Catie Ritchie

As the great Doris McGovern once said in one of her renowned banding reports, “what a privilege to be a part of the cycles of the natural world.”  Indeed, it feels like an honor to call Rushton our office in which we experience and monitor one of the world’s greatest phenomena from late August until November:  the migration of billions of songbirds to their southern wintering grounds.

Doris McGovern educating students from Abington Friends who visited the banding station in October. Photo by Blake Goll
Master Bander, Doris McGovern, educating students from Abington Friends who visited the banding station in October. Photo by Blake Goll
September 16th…But it was worth it when we learned that young ones had eagerly jumped out of bed to 5:45 AM alarms or anxiously nudged their sleeping parents awake, complaining that “they should have left an hour ago for banding!”
Jr. Birders releasing an Ovenbird during September's Open House. Photo by Blake Goll
Jr. Birders releasing an Ovenbird during September’s Open House. Photo by Blake Goll
 One Jr. Birder even gave up his typical Saturday morning of video gaming to attend the open house.  That’s a win when a kid gives up his playstation for the banding station!
A Jr. Birder's notes from the Open House in September. Photo by Blake Goll
A Jr. Birder’s notes from the Open House in September. Photo by Blake Goll
September 13th: One very fat Veery was a whopping 46.3 grams today; on August 31st this Veery had no “junk in the trunk” and was only 31.4 grams.  A 15-gram weight gain is quite substantial for a little bird like this, but it’s an effective strategy for launching yourself to southern Brazil.
Veery banded at Rushton in September. Photo by Blake Goll
Veery banded at Rushton in September. Photo by Blake Goll
 This morning started like so many other fall mornings so far: gray, sticky and misty.   As the early light brightened the navy blue skies, we set the nets to the beat of the Wood Thrush dawn calls.  Soon a Great-horned Owl began singing his sad lullaby, the prelude to the catbird mewing chorus and a bridge of scolding blue jays.
Mistnet at Rushton. Photo by UPenn student, Yimei Li
Mistnet at Rushton. Photo by UPenn student, Yimei Li
 September 20th: A young female American Redstart and a Black-throated Blue Warbler were the sprinkles on our cake today.  The icing was a gorgeous older female Indigo Bunting, a tawny bird with fluorescent indigo on her shoulders and gracefully lining every flight feather and covert.
Black-throated Blue Warbler banded in September. Photo by Blake Goll
Black-throated Blue Warbler banded in September. Photo by Blake Goll
September 20th: One of the middle school students exclaimed, “hey, this is actually pretty cool,” at the bird banding station, and another in the woods marveled, “I haven’t heard crickets in years!”  To see the world through a child’s eyes is one thing.  To see the world through a North Philly student’s eyes is another.
Mighty Writers of Philly student releasing an American Goldfinch in September
Mighty Writers of Philly student releasing an American Goldfinch in September. Photo by Blake Goll
Mighty Writers students trying on the banding gear. Photo by Blake Goll
Mighty Writers students trying on the banding gear. Photo by Blake Goll
October: Ribbons of deep red sky outlined the violet clouds in the apocalyptic October dawn.  The trees are looking more somber with browns and yellows dominating the sparse foliage, portending the arrival of our next study subjects: the Northern Saw-whet Owls.
Northern Saw-whet Owl banded in November. Photo by Blake Goll
Northern Saw-whet Owl banded in November. Photo by Blake Goll
 October 14th: Dripping.  That’s the word to describe our incredible morning.  Rushton morphed into a cloud forest with water dripping from the enveloping mist and birds dripping out of the skies and from our sagging nets by the dozens.  It was a land of plenty at last!  The catch totaled 73 birds of 23 species. Banders kept banding, extracters kept extracting, University of Pennsylvania students kept taking notes, and Lisa, Todd and Alison kept teaching.  If we were a machine, we would have been smoking.
Hermit Thrush and UPenn Masters of Environmental Science students in October. Photo by Blake Goll
Hermit Thrush and UPenn Masters of Environmental Science students in October. Photo by Blake Goll
Banders, Alison Fetterman and Todd Alleger, integral components of the Northeast Motus Collaboration. Photo by Blake Goll
Banders, Alison Fetterman and Todd Alleger, integral components of the Northeast Motus Collaboration. Photo by Blake Goll
October 17th:The Winter Wren is a wondrous little creature.  Its stubby wings and tail make it look like a tiny bubble, and it bounces around the forest floor inspecting the leaf litter for insects.  No bigger than a minute, but somehow always looking charmingly tubby, this is as adorable as birds get.  Don’t be fooled by its cuteness though.  The commanding song of the Winter Wren is as enchanting as the majestic old-growth forests from which it reverberates.  That such a diminutive bird such as he can send forth such an incredible cascade of notes is one of Nature’s divine mysteries.  In its small brown frame lies the heart of the forest.
Winter Wren banded at Rushton on Halloween. Photo by Blake Goll
Winter Wren banded at Rushton on Halloween. Photo by Blake Goll
 October 19th: Geese flew low in large numbers, looking especially regal this morning as the sun in tandem with the rising fog softly lit their wingtips in a dreamlike golden glow.  Single silver threads of spider silk lined with dew were delicately draped from one spent goldenrod to the next, like cobwebs across old dusty furniture in the attic.  
Chimney Swift towers at Rushton in the November dawn. Photo by Blake Goll
Chimney Swift towers at Rushton in the October dawn. Photo by Blake Goll
October 26th: Our first Fox Sparrow of the year also got some Rushton bling and almost got stuffed into Lisa’s coat pocket.  She adoringly exclaimed how it reminded her of a teddy bear.  The warm red-brown of the stately Fox Sparrow’s plumage is awfully reminiscent of autumnal comforts like pumpkins, crimson leaves, cinnamon, spice and everything nice.
Fox Sparrow banded in November. Photo by Blake Goll
Fox Sparrow banded in November. Photo by Blake Goll
 October 26th: One recap White-throated Sparrow was previously banded at Rushton at about this time last year, so he either likes Rushton as a trusted convenience store along his route or he overwinters here.  If only he was nanotagged…
White-throated Sparrow banded in October. Photo by Blake Goll
White-throated Sparrow banded in October. Photo by Blake Goll

November 2nd: Today was unseasonably warm for November making the White-throated Sparrows and juncos seem out of place. The soundscape resembled an aviary with dozens of robins chattering in the canopy, some singing as though it were spring.  We also delighted in one more each of our favorite birds: the Golden-crowned Kinglet, Fox Sparrow and Winter Wren.  

Golden-crowned Kinglet banded in November. Photo by Blake Goll
Golden-crowned Kinglet banded in November. Photo by Blake Goll

Wishing you cheerful holidays filled with peace and birds.  And remember…there’s a lot going on in the woods,
Blake

Ruby-crowned Kinglet banded in October. Photo by Celeste Sheehan
Ruby-crowned Kinglet banded at Rushton in October. Photo by Celeste Sheehan

Filed Under: Bird Banding, Bird Conservation, migration Tagged With: Bird banding, Connecticut Warbler, Motus Wildlife Tracking, nanotag, Ruby-crowned Kinglet, Rushton Farm

Warm Reflections From 2014 to Fight the February Freeze

February 12, 2015 By Communications Team

Brown Creeper release. Banded at Rushton in the Fall of 2014. Photo by Blake Goll
Brown Creeper release. Banded at Rushton in the Fall of 2014. Photo by Blake Goll
WAIT! If you’re a subscriber reading this in email format, before reading any further, please click on the title of the post right above in order to view the blog in the glory it was meant to have on the actual blog website.

Sometimes you will never know the value of a moment

until it becomes a memory.  ~Dr. Seuss

The weary winter sun is slowly setting behind the frozen horizon, casting a serene purple glow of promise in the golden streaked sky and turning the stark white blanket of snow a rose-colored hue.  The birds have already retired to their secret roosting retreats, but a wise, plump squirrel dines in pensive solitude beneath the icy bird feeder that hangs from the solemn sugar maple.
As each new year begins, I imagine it like a roller coaster slowly and almost peacefully creeping up the hill—then methodically pausing at the very top before careening downward at thrilling speeds to destinations unknown.  It is in that slow deliberate climb and the renewing pause at the top — somewhere within those few quiet moments after the birds have gone to roost and before the sun ducks below the horizon —that I find it gratifying and essential to reflect on the year past.

A Junior Birder trekking uphill during the Winter Bird Count, December 2014.
A Junior Birder treks uphill for a better vantage point during the Winter Bird Count, December 2014.  Photo by Blake Goll.

Sometimes we just need to slow down and take some time to direct our thoughts inward, to dreams and rumination. Out of quiet reflection comes clarity,  boldness for the future and preparedness for the ups and downs of the roller coaster ahead.  And so as 2/14— the day of love—approaches, let’s pause beneath the maple tree to recall and stock up on some of the most beloved memories of 2014 for the Trust’s bird conservation efforts.
Pensive Snowman at Kirkwood Preserve.  Photo by Justin Thompson.
Pensive Snowman at Kirkwood Preserve. Photo by Justin Thompson.

Rushton Farm Emerges on the Cutting Edge of Groundbreaking Agroecology Research

In December, an exciting new finding emerged from a team of University of CA, Berkeley researchers showing that organic farming yields are much closer to industrial yields than previously touted.   This new research eliminates the industrial farm bias with an impressive data-set three times larger than previously used.  It basically shows that organic farming yield is only 19 percent less  than conventional (or industrial) farming yields.  This means it is indeed possible to grow food productively while taking care of the land and leaving room for feathered creatures as well!

Song sparrow nest in the garlic field of Rushton during the spring of 2014.
Song sparrow nest hidden in the garlic field of Rushton during the spring of 2014.

Furthermore, findings show that the yield gap is greatly reduced or even eliminated when agroecological practices are used.  These practices are all very familiar to our very own Rushton Farm, which is now becoming a model for feeding the world while keeping bird populations healthy!  Such practices harness ecological interactions and include multi-cropping (growing a variety of crops), crop rotation for soil health and promoting native beneficial insects with native wildflower habitat.
View of Rushton Farm from behind the native widlflowers in August
View of Rushton Farm from behind the native wildflowers in August.  These natural meadows and surrounding hedgerow habitat provide ample habitat for birds and insects that benefit the farm by keeping pest populations in check.

Rushton Farm uses many techniques that eliminate the need for chemicals like pesticides by protecting young crops with row cover while they are particularly vulnerable.
Rushton Farm uses many techniques that eliminate the need for chemicals, like pesticides, including protecting young crops with row cover while they are particularly vulnerable to insect damage.

Monarch butterfly gliding over the fields at Rushton, September 2014.  Photo by Blake Goll
Monarch butterfly drifting over the fields of Rushton, September 2014. Photo by Blake Goll.  Unlike industrial farms, Rushton does not spray toxic herbicides.  Evidence shows that the widespread use of herbicides on genetically modified crops has led to the 95% decline of the monarch population is the past 20 years.

Last year was Rushton Farm's first year growing sunflowers just for the birds!
Last year was Rushton Farm’s first year growing sunflowers just for the birds!  The honeybees enjoyed them as well. Photo by Kelsey Lingle.

This is the kind of farming that provides resiliency to soils, the environment, our health and biodiversity.  It is farming for the future rather than using synthetic chemicals and biologically harmful practices for immediate short-sighted profits.  It is the only kind of farming that can hope to reverse the profoundly   unsustainable impact we are having on this planet, which has lost half of its wildlife populations in 40 years— a result of habitat loss and degradation coupled with unsustainable human consumption (according to WWF’s Living Planet Report 2014).
Although the birds have spoken and we have lots of anecdotal evidence of our own, it’s exciting to have this published confirmation that we’re doing it right and setting a great example at Rushton Farm! Read more about the disappearing yield gap in the following enlightening articles.
Agroecology and the Disappearing Yield Gap
Can Organic Crops Compete With Industrial Agriculture?
Organic Nearly as Productive as Industrial Farming, New Study Says
Four deer. Photo by John Fosbenner
Four deer. Photo by John Fosbenner.  Even Rushton’s deer are treated with respect.  A  solar-powered, low voltage fence is routinely baited to gently encourage herd patterns that bypass the farm.

Declining Chimney Swifts Successfully Fledge from Rushton’s Brand New Chimney Swift Tower!

One of the many projects that our Bird Conservation Team has developed is the Homeowner Bird Box Program.  Through this wildly popular program, the Trust provides and installs a variety of bird boxes for homeowners, including bluebird, wren, wood duck, kestrel and screech owl boxes.  Bird box experts from the Bird Conservation Team work with the homeowners to devise a plan for the best location of the bird boxes on each property.  Last year, 60 bluebird boxes were installed in Willistown and beyond, successfully pumping out broods of Eastern Bluebirds, Tree Swallows, House Wrens and even some chickadees all summer long, thanks to strategic placement and homeowner cooperation in monitoring their boxes.

Eastern Bluebird sighted during the Jr. Birder Winter Bird Count -December 2014.  Photo by Blake Goll
Eastern Bluebird on box sighted during the Jr. Birder Winter Bird Count -December 2014. Photo by Blake Goll.

Chickadee eggs in one of our bluebird boxes.  Photo by Gretchen Larsen
Chickadee eggs and nest in one of our bluebird boxes, 2014. Photo by Gretchen Larsen.

However, it was the charming Chimney Swift chicks that stole the show last breeding season.  In response to growing research indicating that swift populations have been suffering a steep decline of 65% since the 1960s due to habitat loss, our Bird Conservation Team decided to include them in our Bird Box Program. This tiny little aerial sprite is often called a “flying cigar”  because of its stubby proportions and smudge-gray color; its feet are so reduced and claws so long that instead of perching it can only cling to vertical walls of chimneys, hollow trees or caves.
After European settlement, the birds became quite adjusted to nesting in chimneys and their population increased accordingly.  Unfortunately, more people cap their chimneys now and other ‘too narrow’ or ‘too slick’ modern chimneys just aren’t as good as the old brick ones for Chimney Swift nesting.  Logging of old growth forests has also contributed to the decline. To help prevent Chimney Swift decline, you can either preserve your chimney or offer the birds a giant fake chimney structure, which is exactly what we did at Rushton last June.
The magnificent wooden tower, meticulously built by a dear neighbor, glowed every summer morning like a golden shrine in the verdant fields of Rushton until one day in July it became the bustling epicenter of a new family of swifts!  You’d think that large structure would be occupied by a colony of swift nests, but unfortunately it’s just one breeding pair per tower.  Nevertheless, the tower’s swift success is more proof that ‘if you build it, they will come,’ and humans can have a positive impact on bird conservation right in their own backyards if they wish.
Check out chimneyswift.org if you’re interested in having your own swift success story.  (I apologize in advance, but all this swift success talk makes me unable to resist: ‘Cause the chimney cappers gonna cap, cap, cap, cap, cap and the loggers gonna log, log, log, log, log… but I’m just gonna build, build, build, build, build… I build a tower, I build a tower.’)
Viewers checking out the new family of Chimney Swifts occupying the Chimney Swift Tower at Rushton.  July 2014.
Viewers spying on the new family of Chimney Swifts occupying the Chimney Swift Tower at Rushton. July 2014.

The view of the Chimney Swift nest, looking down from the top of the tower.
The view of the Chimney Swift nest, looking down from the top of the tower.  Only one pair of swifts will use the tower during breeding season, but as many as 10,000 can funnel into a chimney to roost overnight during migration.

Here are our Chimney Swift chicks at about two weeks old, almost too big for the nest in July 2014.  The nest is cemented to the wall with the parents' glue-like saliva.
Here are our Chimney Swift chicks at about two weeks old, almost too big for the nest in July 2014. The nest is cemented to the wall with the parents’ glue-like saliva.  Photo by Fred de Long.

500 School Children Got Feather Prints Left on Their Hearts at the Banding Station

The main purpose of the Rushton banding station is to capture annual data on what bird species are using the preserve during migration and breeding and what effect the sustainable farm and other land management practices have on the bird populations.  Our data is shared with the national bird banding database to contribute to conservation, and —perhaps just as importantly— our “field office” is shared with the public to promote local awareness and enthusiasm for the birds that travel through and dwell in our backyards.

Student with Common Yellowthroat before release.  Photo by Kelsey Lingle
Student with Common Yellowthroat before release. Photo by Kelsey Lingle

Last year, hundreds of children visited Rushton Farm and the banding station from a variety of public and private schools including some spirited urban groups like the Melton Center’s afterschool New Directions program from West Chester and the Mighty Writers from Philadelphia.  All of the groups gain an understanding of agroecology and farming with a conscience, enjoy an enlightening walk through the cool woodlands, discover the beauty and fragility of the birds up-close at the banding station and then reflect on the harmony of it all in the herb garden.  The emotional impact the trip has on these children can be seen in the photos below.  Some even say that the Rushton field trip is their favorite day of the school year.
The urban students to which nature is a little more unfamiliar were extra fascinated by it all and enjoyed the little wonders they discovered, even if they did endearingly experience them first from behind their cell (read:comfort) phones.
Student taking a picture of a student releasing a thrush at Rushton, Fall 2014.
Melton Center student taking a picture of another student releasing a thrush at Rushton, Fall 2014.  Photo by Blake Goll.

Melton Center student peeks around her cell phone at a Praying mantis, Fall 2014.  Photo by Kelsey Lingle
Melton Center student peeks around her cell phone at a praying mantis, Fall 2014. Photo by Kelsey Lingle

A brave student releases a feisty female cardinal! Fall 2014.
A brave student releases a feisty female cardinal! Fall 2014.  Photo by Kelsey Lingle.

Westtown second grade learning about birds at the banding station, Spring 2014.  Photo by Kelsey Lingle.
Westtown second grade learning about birds at the banding station, Spring 2014. Photo by Kelsey Lingle.

Melton students reverently observe a Swainson's Thrush before release.  Fall 2014.
Melton students reverently observe a Swainson’s Thrush before release. Fall 2014.  Photo by Kelsey Lingle.

Abington Friends students exploring the forest floor.  Photo by Blake Goll.
Abington Friends students exploring the forest floor. Photo by Blake Goll.

A student marvels at a tiny woodland snail, Fall 2014.  Photo by Kelsey Lingle.
A student marvels at a tiny woodland snail, Fall 2014. Photo by Kelsey Lingle.

Abington Friends student in the herb garden, reflecting on his Rushton experience.  Photo by Blake Goll
Abington Friends student in the herb garden, reflecting on his Rushton experience. Photo by Blake Goll

Melton Center students displaying their "collection bags" on the bridge in Rushton Woods, Fall 2014.
Melton Center students displaying their  collection bags filled with “woodland treasures” on the bridge in Rushton Woods, Fall 2014.

Mighty Writer students using field guides to identify found insects at Rushton, Fall 2014.  Photo by Blake Goll
Mighty Writer students using field guides to identify found insects at Rushton, Summer 2014. Photo by Blake Goll

Mighty Writers got a close-up view of agroecology in action when Farmer Fred showed them a tomato hornworm pest that had been "taken care of" by a paper wasp who laid her eggs on its body.
Mighty Writers got a graphic, close-up view of agroecology in action when Farmer Fred showed them a Tomato Hornworm pest, which had been parasitized by a beneficial braconid wasp that laid her eggs in its body  (Summer 2014).  The adult wasps consume native flower nectar and pollen of which there’s plenty at Rushton!

Close-up view of the paper wasp cocoons on the paralyzed tomato hornworm.
Close-up view of the parasitized Tomato Hornworm, July 2014.  After the braconid wasp larvae finish feeding on the muscle tissue inside the caterpillar’s body, they chew holes through the paralyzed caterpillar’s skin and then form the cocoons that you see here.  Bye-bye Tomato Hornworm.  Hello more beneficial wasps!

Mighty Writers discovering more native insect in the garden.
Mighty Writers discovering more native insects in the garden. July 2014.

Service Students Went Wild while Helping to Create Winter Bird Habitat

Our service students are of great value to the Willistown Conservation Trust because every year they help our small staff accomplish more than it otherwise could:  repairing tree cages at our preserves, weeding around the office and even planting native wildflowers.  Not only do they get the job done, but they do it with a one-of-a-kind flair that makes it fun and memorable.
Last December, the Shipley students got really creative and built an original bird shelter from large branches and sticks they found around the office.  The shelter is holding up well, strategically propped up against the maple tree from which the feeder hangs.  The birds took to it immediately, and it has been a joy to watch them using it as a perch while they wait in line for the feeder, a shelter from the cold wind and a sanctuary from hawks that patrol the open fields.  Consider building one of your own for your birds this winter!

Stick bird shelter at the WCT office, built by Shipley Service students.  Can you see the Dark-eyed Junco?
Stick bird shelter at the WCT office, built by Shipley Service students. Can you see the Dark-eyed Junco?

After that hard work, the students ran wild, exploring in the native wildflower meadow.  They took particular delight and fascination in the old milkweed seed pods.  They opened them up and happily sprinkled them around the meadow so that it looked like it was snowing milkweed seeds!  These are the  moments of magic that a little free time in nature elicits for children, even in a dormant, winter landscape.
View of the inside of a milkweed seed pod.  Photo by Blake Goll
View of the inside of a milkweed seed pod. Photo by Blake Goll

Shipley Service students throwing milkweed seeds into the air.
Shipley Service students throwing milkweed seeds into the air, December 2014.

Shipley Service students throwing milkweed seeds into the air.
Shipley Service students throwing milkweed seeds into the air, December 2014.

Junior Birders Connected to Nature on All New Levels

Our Jr. Birding Club meets monthly to go birding and learn about many other amazing aspects of nature including butterflies and moths, tracks and scat, native plants, bird migration, woodland ecology, farm ecology, stream health, and even bats.   Through a productive combination of structured lessons , free exploration and creative expression—with birds as the backbone— our  Jr. Birders gain a deep appreciation for the natural world and an understanding of the importance of conservation.

Jr. Birder using a field guide at Rushton Farm.
Junior Birder using a field guide at Rushton Farm, Summer 2014.

Below are photos from a few of the activities that were new last year including a native wildflower and watercolor workshop, wetland study at Ashbridge Preserve and free nature play—that neglected pastime that is so important to children’s cognitive and emotional health.
Native wildlfower meadow exploration, July 2014
Native wildflower meadow exploration, July 2014.  These are the thriving wildflowers planted in front of the Trust’s office.

Native phlox are not only beautiful but they also attract native butterflies!   This is Phlox paniculata 'Jeana' at the WCT headquarters, July 2014.
Native phlox are not only beautiful but they also attract native butterflies! This is Phlox paniculata ‘Jeana’ at the WCT headquarters, July 2014.  Photo by Blake Goll.

Despite, declining monarch numbers, our Jr. Birders were able to find quite a few caterpillars feeding on the milkweed in our wildflower meadow, July 2014.  Photo by Blake Goll
Despite declining monarch numbers, our Jr. Birders were able to find quite a few caterpillars feeding on the milkweed in our wildflower meadow, July 2014. Photo by Blake Goll

In fact, one of the Jr. Birders came out of the milkweed patch wearing a tiny monarch caterpillar!  July 2014.
In fact, one of the Jr. Birders came out of the milkweed patch wearing a tiny monarch caterpillar! July 2014.

Close-up of the tiny monarch caterpillar "worn" by a Jr. Birder during the wildflower meadow exploration, July 2014.
Close-up of the tiny monarch caterpillar –plus its calling card– “worn” by a Jr. Birder during the wildflower meadow exploration, July 2014.

The Jr. Birders delighted in painting with watercolors the native flowers plus the special creatures that dwell there.  July 2014.  Photo by Blake Goll.
The Jr. Birders delighted in painting  the native flowers plus the special creatures that depend on them. July 2014. This monarch caterpillar was a very cooperative study subject!

Jr. Birders sampling for macroinvertebrates in Ridley Creek at Ashbridge Preserve.  Summer 2014.
Jr. Birders sampling for macroinvertebrates in Ridley Creek at Ashbridge Preserve. Summer 2014.

Young Birders observing a toad at Ashbridge Preserve, Summer 2014.  Photo by Blake Goll
Young Birders getting to know a toad at Ashbridge Preserve, Summer 2014. Photo by Blake Goll

Jr. Birder building a 'Toad Abode', Summer 2014.
Jr. Birder building a ‘Toad Abode’, Summer 2014.

One of our "senior" young birders building a Toad Abode, Summer 2014.
One of our “senior” Young Birders building an advanced, stream-side ‘Toad Abode’, Summer 2014.

Jay Familetti is one of Young Birders who has been attending our programs for years and has "graduated" to volunteering at the bird banding station!  Here he is with a Northern Flicker, Summer 2014.
Jay Familetti is one of our Young Birders who has been attending our programs for years and has “graduated” to volunteering at the bird banding station! Here he is with a banded Northern Flicker, Summer 2014.  That summer, Jay also attended the prestigious ABA birding camp, Camp Avocet , with a generous scholarship from the Delaware Valley Ornithological Club.

 

Rushton Banding Crew Tirelessly Tagged Nearly 2,000 Birds  during 105 banding days

It was a great year for the banding team; the numbers of birds were up and so were the number of species!  Check out the previous blog post, titled The Spirit of Autumn, to see lots more photos of our beautiful birds.  Below are some photos of the highlights and favorites plus brand new species never before caught at Rushton.

Canada Warbler, Spring 2014.  Photo by Kelsey Lingle
Male Canada Warbler, Spring 2014. Photo by Kelsey Lingle.  This bird could breed as far north as the boreal forests of Canada, vital nesting habitat for many birds.

A Northern Parula being aged by its feathers, Fall 2014.
A Northern Parula being aged by its feathers, Fall 2014.

Common Yellowthroat in Rushton Woods during summer banding, 2014.
Female Common Yellowthroat in Rushton Woods during summer banding, 2014.

Juvenile male Northern Cardinal during summer banding, 2014.
Juvenile male Northern Cardinal during summer banding, 2014.

Female and male Black-throated Blue Warblers, Fall 2014.  Photo by Blake Goll.
Female and male Black-throated Blue Warblers, Fall 2014. Photo by Blake Goll.  These are some of Rushton’s most common warbler visitors during migration.

Field Sparrows at Rushton, Fall 2014. This is a species of concern that is declining in PA due to loss of grassland habitat.  They do breed successfully at Rushton though!
Field Sparrows at Rushton, Fall 2014. This is a species of concern that is declining in PA due to loss of grassland habitat. They do breed successfully at Rushton Farm though, thanks to the preservation of natural field habitat.

Rushton's first Blue-gray Gnatcatcher catch!  Spring 2014.
Rushton’s first Blue-gray Gnatcatcher catch! Spring 2014.

Rushton's first Red-winged Blackbird catch!  This is an adult female.  April 2014
Rushton’s first Red-winged Blackbird catch! This is an adult female. April 2014

Rushton's first Orchard Oriole (female), Spring 2014.
Rushton’s first Orchard Oriole (female), Spring 2014.  Orioles abound at Rushton every spring and summer because they can’t resist the great edge habitat that the farm hedgerows offer.

Rushton's first Yellow-throated Vireo, Fall 2014.
Rushton’s first Yellow-throated Vireo, Fall 2014.

Rushton’s Saw-whet Owl Banding Station had Second-Best Year Yet

Last Fall marked Rushton’s 5th anniversary of monitoring Pennsylvania’s tiniest owls as they disperse south from their coniferous haunts as far north as Canada.  In 34 nights, we captured and banded 96 new Northern Saw-whet Owls, plus caught 3 “foreign recoveries”—owls with bands given to them by other banders before they came to us.  We got all of our foreign birds in November; they included two young females banded earlier that October in New York state 300-some miles away and an older (after second year) female originally banded in Wellington, Canada in 2013!  We also had some exciting reports of owls we banded in years past trying out the nets at other banding stations:  Valhalla, NY had one of our owls— originally banded here in October 2012— last November.

Northern Saw-whet Owl, October 2014.  Photo by Gerald Barton
Northern Saw-whet Owl at Rushton, October 2014. Photo by Gerald Barton

It was an unusual banding season in that the cold weather took its sweet time arriving, and the katydids were still casually singing in mid-November!  Consequently, the owls were fashionably late to their own party.  And then perhaps because the party got started so late, many of the owls did not travel as far south as in previous years.  Most banding stations, especially those south of us—like Virginia, Maryland and Georgia— had below average years.
Not us!  We had our second-best year yet!  Our best was 2012 when we banded a whopping 268 saw-whets after a high-success breeding summer.  In our opening year of 2010 we caught 90 birds, and 2011 and 2013 were the abysmal years of just 33 and 30 birds, respectively.  We and the 130 other banding stations participating in Project Owlnet (which just turned 20) are still trying to learn more about the cyclical nature of this species, how the population is doing and what factors play a role in their winter dispersal movements.
Northern Saw-whet Owl at Rushton, Novemeber 2014.  Photo by Blake Goll
Northern Saw-whet Owl banded at Rushton, November 2014, pictured with Todd Alleger (banding consultant intern). Photo by Blake Goll.

One thing we know is that these little owls are closely dependent, as all birds are, on the reliability of their food sources.  They are rapacious hunters of small rodents, especially mice. Each Saw-whet owl hunts two personal mice per night, saving half of the last one they catch —usually just before dawn— to take with them to their daytime roost site as a “bagged lunch”!  If they can’t get their two mice per night quota… they simply move on to a place with better eats.
Interestingly, an exceptional 23 of our 96 owls caught last fall were caught on multiple nights. This indicates that the eating was good at Rushton, so the owls were able to stick around for awhile.  Our banding records show that 8 of the 23 stayed more than 10 days!  This is as good as getting a 5-star rating on OpenTable, folks!  In addition, a mammal survey carried out by a UPenn graduate student also proved that the Rushton rodents were abundant.
As always, the human density was high during Fall nights at Rushton as well!  Sixteen loyal volunteers and over 700 visitors of all ages were enchanted by our adorable—sometimes demonic as banders will tell you—Saw-whet Owls and learned about the science we and others are doing to fuel the future conservation of these spunky woodland elves.
Students marvel at a banded Northern Saw-whet Owl at Rushton, October 2014.
Students marvel at a banded Northern Saw-whet Owl at Rushton, October 2014.

Germantown Academy students and Northern Saw-whet Owl at Rushton, October 2014.
Germantown Academy students and Northern Saw-whet Owl at Rushton, October 2014.

Student holds a Northern Saw-whet Owl before release, October 2014.  Photo by Blake Goll
Student holds a Northern Saw-whet Owl before release, October 2014. Photo by Blake Goll

Northern Saw-whet Owl captured at Rushton during songbird banding, October 2014.  Photo by Blake Goll
Northern Saw-whet Owl captured at Rushton during songbird banding, October 2014. Photo by Blake Goll

According to Audubon’s climate model, this owl may be largely absent from the lower 48 during winter by the end of the century, as a result of its winter range steadily marching northward with climate change.  For now though, we can be pretty certain we’ll see these owls again next fall—perhaps in a very big way according to the pattern.  Whoooo knows?  Maybe one is overwintering in a forgotten tangle of honeysuckle in your backyard.
Northern Saw-whet Owl banded at Rushton, November 2014.  Photo by Blake Gol
Northern Saw-whet Owl banded at Rushton, November 2014. Photo by Blake Goll


Even on a cold winter’s night as the wild wind howls with disquietude, perusing these photos of warm memories makes me feel as satiated as the plump squirrel beneath the maple tree (you know, the one I mentioned way back at the beginning of this post), stuffing his cheeks full of nourishment in the rose-colored snow beneath the purple sky of promise.
Ignore that groundhog and hold onto your feathers! According to the birds, Spring is just around the corner.
Blake

Red-eyed Vireo nest.  Photo  by Jim McCormac
Red-eyed Vireo nest in the crook of a beech tree branch. Photo by Jim McCormac.  The female vireo “glues” the delicate nest to the forked branch with spider webs.

 
 

Filed Under: Bird Banding, Owls Tagged With: Agroecology, Bird banding, birding, chimney swift, chimney swift tower, Monarch butterfly, native wildflowers, Northern Saw-whet Owl, Rushton Farm, tomato hornworm

Last Week of Songbirds

November 4, 2013 By Communications Team

Ruby-crowned Kinglet.  Photo by Dustin Welch.
Ruby-crowned Kinglet. Photo by Dustin Welch.

Well it has been a stupendous fall with the catch totaling about 1500 birds of almost 60 species when it’s all said and done at the close of this week.

Tomorrow (Nov 5) and Thursday the 7th are our last songbird banding days of this year, so if you or your kids have off tomorrow for election day or inservice, come on by the banding station for a nature experience you won’t forget!  We will be out there in the hedgerows of Rushton Farm from 5:45 am until about 11am.  Stop by any time.

We are still catching White-throated Sparrows, Dark-eyed Juncos, Fox Sparrows, Ruby Crowned Kinglets and more.  The full report for this fall banding season is coming in the next blog post.

There’s a lot going on in the woods,

Blake

Fox Sparrow.  Photo by Michael Defina
Fox Sparrow at Rushton. Photo by Michael Defina

Filed Under: Bird Banding Tagged With: Bird banding, fox sparrow, Rushton Farm

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