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For the Love of Birds

November 14, 2018 By Blake Goll

Golden-crowned Kinglet banded on October 30th. Photo by Blake Goll
On the morning before Halloween, the hedgerows and meadows of Rushton were teeming with migratory birds that had descended on the preserve in the pre-dawn chill.  Banders skillfully processed a rush of 60 birds in just the first two hours of opening; the sun was high by the time Alison and I finally had the chance to look at each other and exchange morning greetings after those blurred hours of poring over birds side-by-side behind the banding table.  During the lulls in activity, cold banders could be seen standing in the meadow thawing in the morning sun—some dressed in ridiculous (and awesome) bird onesies in the spirit of the holiday.
One of our banding volunteers as a Scarlet Macaw on October 30th Banding Bender. Photo by Blake Goll
We could not have picked a better day for Rushton’s first 24-hour long banding big day or bird banding bender as some called it.  The purpose of this endeavor was to understand how the bird community shifts throughout the day at Rushton, whether foraging strategies change toward dusk, and if different species are active later in the day.  Banders took shifts throughout the 24 hours until dawn of Halloween.  The resulting catch was 115 songbirds of 22 species and 12 Northern Saw-whet Owls.
Northern Saw-whet Owl banding at the end of the big day, October 30th.  This owl was not amused by the costumes.  Photo by Amanda Dunbar
Analysis of the results led to some interesting finds.  Most of the activity occurred during the first few hours after sunrise, as we suspected; this is when birds’ energy demands are highest after a long night of traveling or simply resting and metabolizing body fat for warmth.  There was a drop in activity mid-day followed by a surge of activity from 4pm until sunset, such that banders had to finish processing the catch with headlamps lighting the feathers.
Banding birds at sunset on October 30th. Photo by Fred de Long
The top species from the banding bender included sparrows (White-throated, Song, and Swamp), American Robins, and Ruby-crowned Kinglets.  Interestingly, the sparrows were only captured during the morning and evening rushes, whereas the kinglets were captured consistently throughout the day.  We suspect  this is because the kinglets have such high metabolisms that the mid-day siesta is not an option for them; they must forage all day long to meet their energy demands, gleaning mostly insects and spiders along with some seeds and berries.
Ruby-crowned Kinglet getting banded. Photo by Celeste Sheehan
Visitor releasing a Ruby-crowned Kinglet. Photo by Celeste Sheehan
Golden-crowned Kinglet getting banded on October 30th. Photo by Celeste Sheehan
Hermit Thrush banded October 30th. Photo by Celeste Sheehan
Banders were most excited about a White-crowned Sparrow, Brown Creeper, and a Sharp-shinned Hawk (banded at dusk).  After operating the owl station through the night, we began catching songbirds again around 5:30 am, well before dawn.  These were probably incoming migrants, dropping out of the night sky to rest their wings in the habitat that Rushton offers before the morning feeding frenzy.
Brown Creeper banded October 30th. Photo by Alison Fetterman
Leg gauging a Sharp-shinned Hawk for size at the end of the big day, October 30th. Photo by Amanda Dunbar
After the monumental effort of the big day, banders were back at it on November 1st for what was to be the last day of songbird banding for 2018.  However, it didn’t quite feel like the end of the bell curve that we are trying to capture by working the entire season of avian migration.  There was no tapering off of migrants, no time for stretching and yawning and reflecting on how great of a season it was.  The only quiet moments were stolen during the opening of the station in the pre-dawn—hands reaching up to set the black nets against navy skies under the white moon, as sparrows twinkled and stirred in the hedgerows.

White-throated Sparrow banded November 1st. Photo by Celeste Sheehan
The morning rush hour on November 1st. Photo by Blake Goll
Then it was all hands on deck, bird bags weighing down our rack, nets sagging under the weight of birds, and leaves replaced by wings.  Everywhere we looked, small balls of energy were flitting about; kinglets darted and hovered in the shrubs within an arm’s reach, the meadow was alive with sparrows, young White-throats babbled their beginner songs from every corner,  robins streamed overhead, and flocks of geese sailed through the blue skies.
Rushton Farm sunrise on November 1st. Photo by Blake Goll
Banders extracting birds on November 1st. Photo by Blake Goll
There was a palpable migratory energy in the unseasonably warm air.  There was plentitude, multiplicity, and joy.  Psychologists claim that the human mind derives joy from abundance, round things, and color.  I realized that morning why birds bring people so much joy.  They are all of these things and more.  We’re in this business to try to keep them abundant.
Cedar Waxwing in the hedgerow on November 1st. Photo by Celeste Sheehan
When all was said and done, we  processed 97 new birds on November 1st (during the normal banding hours).  A total of 14 species were caught including 32 Ruby-crowned Kinglets, 10 Purple Finches, 27 White-throated Sparrows, and 2 White-crowned Sparrows. It was a strange day for the first of November with dragonflies, milkweed bugs, and butterflies active again, taking advantage of the last warm day.  “If you can live, LIVE,” Alison said matter-of-factly.  That struck me.  All any of us creatures have is today, this season, and the beauty of this moment.  And so we soldier on.
White-throated Sparrow release. Photo by Celeste Sheehan
White-crowned Sparrow banded November 1st. Photo by Celeste Sheehan
Todd Alleger determining the age of a Tufted Titmouse banded November 1st. Photo by Celeste Sheehan
Palm Warbler banded November 1st. Photo by Celeste Sheehan
Male Purple Finch banded November 1st. Photo by Celeste Sheehan
Female Purple Finch banded November 1st. Photo by Celeste Sheehan
It didn’t feel right shutting down the station with such a high capture rate and key bookend species missing including the Dark-eyed Juncos and Fox Sparrow.  Though we were all tired from a long season, we decided to open the station again last week for one final day.  “Can’t stop, won’t stop,” Holly said.
Holly Garrod taking “light box” photos of the birds on October 30th  for feather study. Photo by Celeste Sheehan
For the love of birds, we operated last Thursday, November 8th.  We processed 73 new birds and 14 recaps of 17 species, including the Dark-eyed Juncos and another Brown Creeper.  The juncos are our snowbirds, breeding in the western mountains and Appalachians as well as throughout Canada, and gracing us with their white-tailed beauty all winter long.  Like other overwintering sparrows, they enjoy feeding on the seeds of native perennials like goldenrod that we have available in the wild meadows of Rushton.  For this reason, we do not mow our meadows until spring.
Dark-eyed Junco banded last Thursday. Photo by Blake Goll
Brown Creeper banded  last Thursday. Photo by Celeste Sheehan
Brown Creepers are one of our favorites as well.  These bark-colored birds use their down-curved bills to probe under furrowed bark of large trees for insects and other arthropods.   Methodically working their way up from the base of the tree, they use their rigid tail feathers as a kickstand, much like woodpeckers.
We concluded the season appreciating a few of our common residents including a Carolina Wren and a White-breasted Nuthatch.

White-breasted Nuthatch banded last Thursday. Photo by Celeste Sheehan
Carolina Wren banded last Thursday. Photo by Celeste Sheehan
Aging a Tufted Titmouse. Photo by Celeste Sheehan
Swamp Sparrow banded last Thursday. Photo by Blake Goll
Last Gray Catbird banded last Thursday. Photo by Blake Goll

All in all, it was an extraordinary season, thanks to an exceptional team of licensed banders, ornithologists, volunteers, visitors, students, photographers, and bird lovers.  The grand total was 1,010 new birds and 162 recaps of our own.  We’ll be out there again next spring, for the love of birds.
There’s a heck of a lot going on in the woods,
Blake

Golden-crowned Kinglet released after banding last Thursday. Photo by Blake Goll

P.S. Stay tuned for a special owl report coming to a blog near you.
 

Filed Under: Bird Banding, Bird ecology, migration Tagged With: Bird banding, Bird Conservation, Brown Creeper, fall migration, Golden-crowned kinglet, kinglet, songbird migration

Final Fall Fallout of Migratory Songbirds & Our First Saw-whet Owl of the Season!

October 22, 2011 By Communications Team

Nashville Warbler by Adrian Binns
Nashville Warbler at Rushton Woods Preserve by Adrian Binns (Fall 2011)

Last Friday (10-14), we banded 56 birds to the delight of my adult class (age 50+) from Widener’s Osher Lifelong Learning Institute.  After studying birds, bird banding and bird conservation in the classroom, the enthusiastic students came out to Rushton Woods Preserve to experience the banding production in person.  They were thrilled to touch and be so close to these wild feathered beauties and were pleasantly surprised at the diversity of species:  Eastern Phoebe, 5 Palm Warblers, 3 Myrtle Warblers, 1 Common Yellowthroat, 4 Black-throated Blue Warblers, lots of sparrows, 1 Gray-cheeked Thrush, towhee, goldfinch, cardinals, Carolina Wren, and 1 late CATBIRD!

Palm Warbler
Palm Warbler at Rushton by Blake Goll

The net over the compost pile was very busy that day with over 15 birds in the net at once during the mid-morning net check.  Doris was packing 2-3 birds of the same species in each bag (we need more hand-made bird bags if you can sew and want to lend a hand!).  Poor Doris also suffered deep puncture wounds during that same net check from an ungrateful mole or vole that she rescued from the net.  “Don’t get no respect, even from rodents!”, she cried.

This past Tuesday (10-18) was our second big fallout day, probably the last one for this fall.   We banded 93 birds of 20 species, which is 7 birds over Rushton’s previous record of 86!  A Northern Parula Warbler was the best of 6 warbler species, and several Golden-crowned Kinglets were new for this year.  Our loyal volunteers Alice, Lou, and Godefroy extracted non-stop and  kept the birds safe.  Win and Justin helped at the open and went to work saying, “Here are 6 birds.  There are 2 more in #7 and 12 in #6.”   That was 7:45 and we never stopped until after 10.   Doris says, “No bird was held more than 90 minutes, which is long for Rushton, but nothing for the big banding stations which routinely hold birds for longer.”

Golden Crowned Kinglet
Golden Crowned Kinglet (Blake Goll)

Thursday and Friday of this week were slower, with probably more High School kids than birds.  About 100 honors students from Conestoga High School’s Environmental Science class came out to Rushton over the past two days.  They had the chance to visualize and experience concepts they have learned or will learn in the classroom this year by rotating through 3  stations: a woodland ecology walk, tour of the sustainable CSA farm, and bird banding and conservation.  The students were impressed with the common birds we all sometimes take for granted like the handsome American Robin and Northern Cardinal and the charismatic Tufted Titmouse.  The very last catch of the day was a stunning Sharp-shinned Hawk, which the kids got really excited about.  The cell phones immediately came out of pockets and were snapping pictures left and right!  This is probably the same hawk that we have occasionally seen darting in and out of the hedgerows and even dive-bombing Lisa one day as she was closing the nets.  I think the Sharpie was angry that she wasn’t leaving the net up to facilitate his lunch endeavors.

Sharp-shinned hawk- Young female
Young female Sharp-shinned Hawk (by Blake Goll)

As for the Northern Saw-whet Owls (NSWO), we were off to a very slow start.   For the first couple of weeks, we ended up empty-handed every night  except for a red-phase Eastern Screech Owl two Fridays ago  at 8pm and then again at 11pm.  He just couldn’t get enough of our nets, apparently.  Let’s just hope he has learned his lesson and stays away once we really start catching saw-whets (screech owls are a predator of NSWO, believe it or not).

Eastern Screech Owl
Eastern Screech Owl recapture (by Blake Goll)

We don’t know what’s taking the Saw-whets so long, but it may be related to this crazy wet weather we have been having (which seems to have delayed this year’s  songbird migration as well).  There is also some speculation that this year was not a very successful breeding year for the NSWO, and therefore the number of young “Hatching Year” (HY) birds is much lower than last year.  Since most of the owls we band are HY birds, we don’t expect to band as many this year as last. (The older more dominant males tend to prefer to stick out the winter on their northern territories rather than migrating south with the young owls and the females. )

The NSWO is also an irruptive species closely tied to the pine tree seed crop up north.  Last year was an irruption year during which we had more saw-whets coming south than usual because the pine trees did not produce as many seeds as the previous year, which caused the rodent population (owl food) to plummet.  When food up north is scarce, more owls travel south for the winter.  Bird migration is related to food scarcity, not cold weather.  Most birds, even some hummingbirds like the Rufous, are well adapted to dealing with cold weather.

Northern Saw-whet Owl
Our first Northern Saw-whet Owl of the 2011 season (by Blake Goll). She is a Hatch Year female.

You can imagine our delight last night (10-21) when we finally caught our first Northern Saw-whet Owl!!!  It was a cute-as-a-button feisty young female weighing in at about 92 grams.  It was about 9:00 at night when she found her way to our nets while investigating our audio lure that incessantly plays the male’s territorial call.  Everyone was ecstatic, and even men’s voices were raised an octave or two as they ‘ooed’ and ‘aahed’ over the little owl.  As for myself, I was a little intimidated by her mesmerizing yellow eyes that seemed to be boring into my soul from some wild place and “reading my mind”, as one woman said.

Young female Northern Saw-whet Owl
Our young female Northern Saw-whet Owl (by Blake Goll). My, what beautiful eyes she has!
Photogenic Northern Saw-whet Owl
Our very photogenic Northern Saw-whet Owl

Alas, there is hope for this year’s owl banding season! Remember to contact Lisa Kiziuk (lkr@wctrust.org) if you are interested in observing owl banding.  Songbird banding will also continue on Tuesday and Thursday mornings for the next couple of weeks.  No reservation required for songbirds.

And speaking of Lisa, congratulations to her on winning the DVOC (Delaware Valley Ornithological Society) Rosalie Edge Conservation Award for her tireless bird conservation work!  Without her vision, the Willistown Conservation Trust’s banding station at Rushton Woods Preserve would never have become a reality.  Today, the Rushton bird banding station is not only a reality but a wonderful destination where adults and children of all backgrounds experience some of nature’s finest works of living art while learning about the importance of such scientific research in the understanding and ultimate conservation of our nation’s feathered bounty.  Thank you, Lisa, for  making your dream come true and for all you do for the birds.  I know Rosalie Edge would be proud of you.

~Blake

Lisa Kiziuk with Magnolia Warbler
Lisa Kiziuk with Magnolia Warbler
Rosalie Edge
Rosalie Edge (from Google images)

Filed Under: Bird Banding, Bird Events, Owls Tagged With: Bird banding, kinglet, Nashville warbler, Northern Saw-whet Owl, Owl banding, Palm warbler, Sharp-shinned hawk

Final Fall Fallout of Migratory Songbirds & Our First Saw-whet Owl of the Season!

October 22, 2011 By wctbirds

Nashville Warbler by Adrian Binns
Nashville Warbler at Rushton Woods Preserve by Adrian Binns (Fall 2011)

Last Friday (10-14), we banded 56 birds to the delight of my adult class (age 50+) from Widener’s Osher Lifelong Learning Institute.  After studying birds, bird banding and bird conservation in the classroom, the enthusiastic students came out to Rushton Woods Preserve to experience the banding production in person.  They were thrilled to touch and be so close to these wild feathered beauties and were pleasantly surprised at the diversity of species:  Eastern Phoebe, 5 Palm Warblers, 3 Myrtle Warblers, 1 Common Yellowthroat, 4 Black-throated Blue Warblers, lots of sparrows, 1 Gray-cheeked Thrush, towhee, goldfinch, cardinals, Carolina Wren, and 1 late CATBIRD!

Palm Warbler
Palm Warbler at Rushton by Blake Goll

The net over the compost pile was very busy that day with over 15 birds in the net at once during the mid-morning net check.  Doris was packing 2-3 birds of the same species in each bag (we need more hand-made bird bags if you can sew and want to lend a hand!).  Poor Doris also suffered deep puncture wounds during that same net check from an ungrateful mole or vole that she rescued from the net.  “Don’t get no respect, even from rodents!”, she cried.

This past Tuesday (10-18) was our second big fallout day, probably the last one for this fall.   We banded 93 birds of 20 species, which is 7 birds over Rushton’s previous record of 86!  A Northern Parula Warbler was the best of 6 warbler species, and several Golden-crowned Kinglets were new for this year.  Our loyal volunteers Alice, Lou, and Godefroy extracted non-stop and  kept the birds safe.  Win and Justin helped at the open and went to work saying, “Here are 6 birds.  There are 2 more in #7 and 12 in #6.”   That was 7:45 and we never stopped until after 10.   Doris says, “No bird was held more than 90 minutes, which is long for Rushton, but nothing for the big banding stations which routinely hold birds for longer.”

Golden Crowned Kinglet
Golden Crowned Kinglet (Blake Goll)

Thursday and Friday of this week were slower, with probably more High School kids than birds.  About 100 honors students from Conestoga High School’s Environmental Science class came out to Rushton over the past two days.  They had the chance to visualize and experience concepts they have learned or will learn in the classroom this year by rotating through 3  stations: a woodland ecology walk, tour of the sustainable CSA farm, and bird banding and conservation.  The students were impressed with the common birds we all sometimes take for granted like the handsome American Robin and Northern Cardinal and the charismatic Tufted Titmouse.  The very last catch of the day was a stunning Sharp-shinned Hawk, which the kids got really excited about.  The cell phones immediately came out of pockets and were snapping pictures left and right!  This is probably the same hawk that we have occasionally seen darting in and out of the hedgerows and even dive-bombing Lisa one day as she was closing the nets.  I think the Sharpie was angry that she wasn’t leaving the net up to facilitate his lunch endeavors.

Sharp-shinned hawk- Young female
Young female Sharp-shinned Hawk (by Blake Goll)

As for the Northern Saw-whet Owls (NSWO), we were off to a very slow start.   For the first couple of weeks, we ended up empty-handed every night  except for a red-phase Eastern Screech Owl two Fridays ago  at 8pm and then again at 11pm.  He just couldn’t get enough of our nets, apparently.  Let’s just hope he has learned his lesson and stays away once we really start catching saw-whets (screech owls are a predator of NSWO, believe it or not).

Eastern Screech Owl
Eastern Screech Owl recapture (by Blake Goll)

We don’t know what’s taking the Saw-whets so long, but it may be related to this crazy wet weather we have been having (which seems to have delayed this year’s  songbird migration as well).  There is also some speculation that this year was not a very successful breeding year for the NSWO, and therefore the number of young “Hatching Year” (HY) birds is much lower than last year.  Since most of the owls we band are HY birds, we don’t expect to band as many this year as last. (The older more dominant males tend to prefer to stick out the winter on their northern territories rather than migrating south with the young owls and the females. )

The NSWO is also an irruptive species closely tied to the pine tree seed crop up north.  Last year was an irruption year during which we had more saw-whets coming south than usual because the pine trees did not produce as many seeds as the previous year, which caused the rodent population (owl food) to plummet.  When food up north is scarce, more owls travel south for the winter.  Bird migration is related to food scarcity, not cold weather.  Most birds, even some hummingbirds like the Rufous, are well adapted to dealing with cold weather.

Northern Saw-whet Owl
Our first Northern Saw-whet Owl of the 2011 season (by Blake Goll). She is a Hatch Year female.

You can imagine our delight last night (10-21) when we finally caught our first Northern Saw-whet Owl!!!  It was a cute-as-a-button feisty young female weighing in at about 92 grams.  It was about 9:00 at night when she found her way to our nets while investigating our audio lure that incessantly plays the male’s territorial call.  Everyone was ecstatic, and even men’s voices were raised an octave or two as they ‘ooed’ and ‘aahed’ over the little owl.  As for myself, I was a little intimidated by her mesmerizing yellow eyes that seemed to be boring into my soul from some wild place and “reading my mind”, as one woman said.

Young female Northern Saw-whet Owl
Our young female Northern Saw-whet Owl (by Blake Goll). My, what beautiful eyes she has!
Photogenic Northern Saw-whet Owl
Our very photogenic Northern Saw-whet Owl

Alas, there is hope for this year’s owl banding season! Remember to contact Lisa Kiziuk (lkr@wctrust.org) if you are interested in observing owl banding.  Songbird banding will also continue on Tuesday and Thursday mornings for the next couple of weeks.  No reservation required for songbirds.

And speaking of Lisa, congratulations to her on winning the DVOC (Delaware Valley Ornithological Society) Rosalie Edge Conservation Award for her tireless bird conservation work!  Without her vision, the Willistown Conservation Trust’s banding station at Rushton Woods Preserve would never have become a reality.  Today, the Rushton bird banding station is not only a reality but a wonderful destination where adults and children of all backgrounds experience some of nature’s finest works of living art while learning about the importance of such scientific research in the understanding and ultimate conservation of our nation’s feathered bounty.  Thank you, Lisa, for  making your dream come true and for all you do for the birds.  I know Rosalie Edge would be proud of you.

~Blake

Lisa Kiziuk with Magnolia Warbler
Lisa Kiziuk with Magnolia Warbler
Rosalie Edge
Rosalie Edge (from Google images)

Filed Under: Bird Banding, Bird Events, Owls Tagged With: Bird banding, kinglet, Nashville warbler, Northern Saw-whet Owl, Owl banding, Palm warbler, Sharp-shinned hawk

Rushton Migration Minutes: An Unexpected Second Wave of Warblers Preceded the Sparrow Surge Last Week… and One of Our Banded Owls Appeared In Quebec!

October 13, 2011 By Communications Team

“Bird Migration is the world’s only true unifying natural phenomenon, stitching the continents together in a way that even the great weather systems fail to do.”
~Scott Weidensaul, Author & Naturalist
red tailed hawk_dalton portella
Red-tailed Hawk by Dalton Portella
Migration is such an exciting time of year because you never know what to expect!  Here at the Rushton Wood Preserve banding station, every day is different and brings new surprises.   As difficult as it is to wake up before the sun rises on banding days, it is much easier when I imagine the endless possibilities of woodland gems we could encounter in one of our 11 webs.
Ruby crowned kinglet in net
Last week (the first week of October) was the first week I really felt the fall chill in the air, but our nets were hot!  On Tuesday (Oct. 4) we banded 60 birds and to our surprise, a bunch of them were warblers.  As I said in my last blog post, we were observing a drastic decline in the volume of warblers and therefore expected that they were almost finished passing through.  Not so!  The second wave of warblers last week must have been the birds who were held back by all the rain of previous weeks.  Whatever the reason for this fallout, we were thankful because we had species that Rushton has never seen before, including a Tennessee warbler.  This dainty warbler of the Canadian boreal forest is becoming increasingly uncommon throughout its range, so having one at Rushton was spectacular.  The Tennessee warbler specializes  in eating the spruce budworm, so its population may be closely tied to budworm fluctuations up north.
TennesseeWarblerLRR
Tennessee Warbler by Robert Royse (taken from Google Images)
Another amazing warbler we banded was the Blackpoll warbler.  Lisa and I had never before seen one, let alone held one in our hand, so we were a bit skeptical at first.  First we thought Pine Warbler, but ruled that out by the black centers in our bird’s feathers.  Next, our guide indicated that in the fall Blackpoll warblers are often confused with Bay-breasted Warblers, but we finally ruled out the Bay-breasted by the bright yellow soles of our bird’s feet! The Bay-breasted has more grayish feet.   Gotta love “confusing fall warblers”.
Blackpoll warbler
Blackpoll warbler in fall plumage at Rushton by Blake Goll
We had 2 Blackpoll warblers that day. One was skinny and the other had lots of fat stored in its wishbone area (or furcular hollow), which is what we love to see on long-distant migratory birds.  It is especially important for Blackpolls to have lots of fuel because they have one of the longest, most strenuous journeys of all our wood warblers.  Their journey begins on their breeding grounds of the northern boreal forest of Canada.  They double their mass and fly all the way to South America, which is impressive in itself.  Even more incredible is that many of the Blackpolls opt for the oceanic flight; they fly from northeastern U.S. out over the western Atlantic  nonstop for 1,864 miles to Puerto Rico or S. America.  The flocks of Blackpolls have shown up as diffuse blobs of glowing green on radar scopes over the West Indies at altitudes of 23,000 ft!  These tiny warblers land in S. America about 88 hours after leaving the New England coast.  Ornithologists have compared this dumbfounding journey to a human running 4 minute miles for 3.5 days, without rest, refueling, or water.  Absolutely mind-boggling!
Other warblers in last week’s catch included Magnolia, Black and White, Common Yellowthroat, and Black-throated Blue.
Female Black throated Blue warbler
Female Black-throated Blue warbler at Rushton Woods Preserve by Blake Goll
Male Black & White warbler
Male Black & White warbler at Rushton by Blake Goll
On Thursday of last week, the sparrows replaced the warblers.  White-throated Sparrows were the catch of the day, and a Lincoln’s Sparrow was the most photographed sparrow of the day.  This very handsome sparrow likes boggy areas and is only seen in our area during migration on his way to the southern U.S. and Central America.
Lincoln's sparrow
Lincoln's sparrow at Rushton by Blake Goll
It is safe to say that last week was an all out fallout for Rushton Woods Preserve.  The migratory birds came in on the cold front overnight and touched down in our enticing habitat by dawn.  Depending on each bird’s individual physical condition, they will stay for a day to several days or even over a week in a stopover habitat such as ours.  Then they will continue their migration, refueled.  We could tell the birds last week had traveled very far overnight because many were showing signs of exhaustion, even those that we “popped” out of the net in seconds.  We quickly processed these tired migrants first and released them immediately, so they could get back to refueling on insects and berries in the rich hedgerows and farm fields.
Rushton Farm
Rushton Farm
I spoke with our farmer, Fred, and he and the other growers who had been working the fields last week noticed the “fallout” of birds as well.  As they were walking through the fields harvesting, they were often startled by birds, including warblers, flying right our from under their feet.  The birds would fly only a short distance away from them and land in the grasses or vegetable plants a few feet away, as if too exhausted to go farther.  Fred suspects the warblers glean insects from the crops; for example, the tomatoes are being left on the vine to rot in preparation for winter because the fermented fruit preserves the seeds for next year.  This rotting fruit attracts a lot of insect activity, which the birds immediately discover.  Fred also notices migrant birds following the farmers as they walk through the fields because the birds know that such human movement kicks up the insects from the undergrowth.  Fascinating stuff!  And to think, many birders never dreamed that farms could be beneficial to birds.  A prize will go to any photographer who helps us document this revelation by getting a picture of a warbler on a tomato plant at Rushton! 🙂
Field sparrow
Field sparrow at Rushton. Blake Goll
This week we have been rained out from banding everyday so far except for Tuesday when we got 81 birds!  The first of the Yellow-rumped Warblers came through; these warblers are the last to migrate because they winter farther north than other warblers, due in large part to their ability to digest berry fruits.  We banded a few other warblers this week including Common Yellowthroat, Black-throated Blue, and Magnolia, but the catch was largely sparrows: Lincoln’s, Swamp, Chipping, Song and Field.  We banded some nice thrushes including Hermit and Wood Thrush in addition to towhees and resident birds like Carolina Chickadee, Tufted Titmouse, and woodpeckers.  The Ruby-crowned Kinglets are moving through in greater numbers now, and there are officially no more Gray Catbirds in Rushton until next spring.
Ruby Crowned Kinglet
Ruby Crowned Kinglet at Rushton. Blake Goll
Perhaps the most exciting birds we caught on Tuesday were a Winter Wren and a Brown Creeper, both very brown but uniquely exquisite.  The Winter Wrens have one of the most elaborate songs of all; their voice echoes the heart of the forest.  The Brown Creepers sing of “Trees, trees, beautiful trees!” in a sweet tinkling

brown creeper
Brown Creeper (from Google Images)

voice, and their secretive habit makes them very exciting to spot creeping along a tree trunk.  They sing of trees, crawl up and down trees, place their nests behind flaps of loose bark on trees, and even look like they are cut from the same cloth of tree bark.  Their long , gnarly toes even remind be of tiny tree branches, and their marvelously curved bill is perfectly suited to “tickling the tree trunks” for insects.  What a wonderful little bird.

Winter wren
Winter wren. Blake Goll
Speaking of wonderful little birds, the Northern Saw-whet Owls are on their way to Rushton!  Please read the following notification from the Rushton Banding crew:
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Northern Saw-whet Owl
Northern Saw-whet Owl. Blake Goll

2011 NSWO Update!

You’re invited to the Rushton Woods Banding Station this fall for a rendez vous under the stars to observe first-hand the techniques and uses of bird banding and to learn about the biology of Northern Saw-whet Owls.  We will open to the public from October 20 until November 23 with Thursday, Friday and Saturday evenings available, but we can accept visitors on a RESERVATION BASIS ONLY.  Many people wish to visit our station with the hope of seeing these owls up-close, but our space is extremely limited.

The monitoring of Northern Saw-whet Owls (NSWO) is a nocturnal activity whereby this small owl species is caught using a system of loudspeakers (playing their calls) surrounded by mist nets in which the owls become entangled. The information collected from this process gives scientists information about the cyclical nature of the migratory cycles of these species and their reproductive success.

Please reserve an evening by e-mailing Lisa Kiziuk at lkr@wctrust.org as soon as possible and note that banding is weather dependent as rain or high winds will cause the station to close.

The station is located in the farm shed at Rushton Woods and Farm Preserve and the GPS address to use is 1050 Delchester Road, Malvern, PA 19355.  Please note that parking is at a premium and you may be asked to park in the field lot. DRESS WARMLY.

Important NSWO Update!

Yesterday we received news that one of our “Rushton NSWOs” was caught at the Observatoire d’Oseaux de Tadoussac in Quebec.  Here is the link to the observatory where she was caught on October 3 2011:  http://www.explos-nature.qc.ca/oot/.  NSWO number 0494-81906, or “Frenchy” as we call her, was caught at the Rushton Woods Banding Station last year on November 6 and weighed in at 99.3g.  She was a “hatch year” owl, which means she was born in the summer of the year we caught her.  This year on October 3, she weighed in at 103.3g, a sizable increase, possibly in preparation for migration, and she is now aged as a “second year” owl.  We hope to see her again at Rushton this Fall!

New This Year:

In order to help support our long-term monitoring of the population dynamics of Northern Saw-whet Owls, and to improve our understanding of these mysterious night visitors, the Rushton Banding Crew is seeking donations to the program through our newly created “Owl Donation Box.”  Your contributions will help financially sustain our continued collection of valuable information about these nocturnal birds, which are discreet and difficult to monitor.  Your contributions also help fund our songbird banding efforts.

See you under the stars!

The Rushton Woods Banding Crew

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Ok Folks, that’s all for now.  Phew! I had a lot to tell you! There is just so much happening in the natural world this time of year, and birds make these seasonal transitions so much more evident and exciting.  Remember, you are welcome to share in the excitement Tuesday and Thursday mornings at the Rushton Woods Preserve banding station through the first week or so of November.
Make sure you go see “The Big Year” this weekend…I can’t wait!
~Blake

Filed Under: Bird Banding, Bird Events, Owls Tagged With: Bird banding, Blackpoll warbler, Brown Creeper, Field sparrow, kinglet, Lincoln's sparrow, Saw-whet owl, Tennessee warbler

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