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Mid-Morning Shower Yields a Pot of Avian Gold at the End of a Rainbow

October 1, 2012 By Communications Team

Female Common Yellowthroat
Female Common Yellowthroat. Photo by Blake Goll.

The air was thick, sticky and unseasonably warm on Wednesday, not at all the kind of crisp air that brings a flurry of fall feathers to our nets.  We were hosting a handful of very enthusiastic children who had off from school for Yom Kippur,  so we were wishing for some yellow warblers to brighten the otherwise meager catch of Gray Catbirds, Song Sparrows and wrens.  However, we did catch our 15th Swainson’s Thrush of the season and the second White-throated Sparrow of this autumn, which is an exciting indicator of the beginning of the next chapter of fall migration.

Swainson's Thrush.  Photo by Gloria Ives.
Swainson’s Thrush. Photo by Gloria Ives.
White-throated Sparrow.  Photo by Blake Goll.
White-throated Sparrow. Photo by Blake Goll.

Finally, a couple of lovely Magnolia Warblers graced our audience with their bright plumage, and we were satisified with that.  There were plenty of birds for the visitors to study, and they were able to see many ageing and sexing criteria for different species.  We thanked the maggies, the kids ooed and awed over a spritely Black-and-White Warbler, and we settled in for the rest of what we expected to be a dull morning (we spoiled banders are never satisfied!).

Magnolia Warbler (adult male).  Photo by Blake Goll.
Magnolia Warbler (adult male). Photo by Blake Goll.
Ageing a Magnolia Warbler by the shape of tail spots.
Ageing a Magnolia Warbler by the shape of tail spots.
Visitors observing bird banding.
Visitors observing bird banding.

Plip. Plop. Drip. Drop. Suddenly a cloud looming above decided to burst open even in the unabated presence of the sun.  After a few minutes of this bizarre weather, we thought we’d better check the nets.   As we trekked around to all the nets, most of which were empty, the rain subsided as abruptly as it started.  We rounded the corner of the hedgerow to check one of the last nets, net 10, and there was our pot  o’ gold at the end of the rainbow!  Rain drops sparkled on the net as it sagged and bounced under the weight of 10 wiggly pairs of wings, including two golden beauties- a Nashville and a Tennessee Warbler, appropriately sticking together.  Birds of the same state stick together?

Nashville Warbler (male). Photo by Blake Goll.
Nashville Warbler (male). Photo by Blake Goll.
Sexing the Nashville Warbler by the extent of red feathers on the crown.  This is a male.
Sexing the Nashville Warbler by the extent of red feathers on the crown. This is a male.
Tennessee Warbler (hatch year).  Photo by Blake Goll.
Tennessee Warbler (hatch year). Photo by Blake Goll.
Wilson's Warbler being extracted from net.  Photo by Blake Goll (taken in Oregon).  We banded a Wilson's Warbler at Rushton 2 weeks ago.
Wilson’s Warbler being extracted from net. Photo by Blake Goll (taken in Oregon). We banded a Wilson’s Warbler at Rushton 2 weeks ago.

Other goodies in our jackpot included two Red-eyed Vireos, Black-throated-Blue Warblers, a Magnolia Warbler and Tufted Titmouse.  This great catch could have just been a coincidence,  but more likely these were birds that were foraging high in the canopy or at the edge of the woods and dove for cover in the underbrush of the hedgerow when the rains came.  Sometimes trapped titmice make such a fuss that they lure other birds into the net, but we didn’t hear anything from the banding table, which is fairly close to Net 10.  We need a little shower of rain and birds like that every day we are out there!  This week, we will commence daily rain dances.

Male Black-throated blue Warbler (hatch year).  Photo by Blake Goll.
Male Black-throated blue Warbler (hatch year). Photo by Blake Goll.
Female Black-throated Blue Warbler
Female Black-throated Blue Warbler

The total number of birds caught last week (2 banding days) was 92, including those mentioned above plus the first of the year White-throated Sparrow, a Gray-cheeked Thrush, a Brown Thrasher, Ovenbird, Common Yellowthroat, Field Sparrow, Eastern Towhee and an American Goldfinch.  In the hedgerows, but not the nets, were American Woodcocks, Scarlet Tanager, Philadelphia Vireo and Red-breasted Nuthatch.

Cathy Staples and Common Yellowthroat.
Cathy Staples and Common Yellowthroat.
A hawk or Philadelphia Vireo or Red-breasted Nuthatch spotted during banding session.  Photo by Blake Goll.
A hawk or Philadelphia Vireo or Red-breasted Nuthatch spotted during banding session! Photo by Blake Goll.

Be on the look out for Red-breasted Nuthatches (RBNUs) at your feeder, in your yard or wherever you bird.  As a result of a coniferous cone crop failure in the northeast (they eat the seeds of pinecones), many RBNUs are leaving their northern haunts to find better seed sources to the south for the winter.  Others will remain in northwestern Ontario where the cone crops are much better.  Additional northern birds like Common Redpolls might also show up in our area this winter for similar reasons related to the white birch seed crop in the north.  Read the Winter Finch Forecast on the American Birding Association’s website for information about other irruptive finch species.

Red-breasted Nuthatch from Cornell Lab of Ornithology "All about Birds" website.
Red-breasted Nuthatch from Cornell Lab of Ornithology “All about Birds” website.  Here they describe this nuthatch as “an intense bundle of energy at the feeder.”

Reminder: Keep your hummingbird feeders up and your salvia shielded from the frost at least through Thanksgiving! Other vagrants headed our way that could show up in your yard include Rufous Hummingbirds and other western species of hummers.  These guys usually don’t appear until October, November or even December long after the Ruby-throats have gone.  Ever-warmer winters are making the east perfectly hospitable to these vagrant western hummingbirds who are surviving and passing on their somewhat mutant genes to their offspring, which will follow in their parents’ wingbeats migrating from the west to the east instead of south for the winter.  Hence, new migration routes for western hummers are emerging right before our eyes!

A Rufous Hummingbird.  Photo by Blake Goll.  This is one of my photos from banding in Washington state.  Don't worry, hummer freeze like this and "play dead" when caught.  She was fine and flew off with a nudge.
A Rufous Hummingbird. Photo by Blake Goll. This is one of my photos from banding in Washington state. Don’t worry, hummers freeze like this and “play dead” when caught. She was fine and flew off with a nudge.

Visit Scott Weidensaul’s website for more details about this new movement of western hummers and how to become part of the hummer banding study if you find one in your yard this fall or winter.  Psst….I hear these western wanderers really like Pineapple sage if you have any of that.

Northern Saw-whet Owl.  Photo by Adrian Binns.
Northern Saw-whet Owl. Photo by Adrian Binns.

Those fuzzy balls of cute fury are winging their way toward us at a faster pace than ever before.  Saw-whet banders north of us are saying things like, “No one will sleep this Autumn,”  and, “Sawweet dreams southern banders!”  Kestrel Haven Avian Migration Observatory in Burdett, NY (between Ithaca and Watkins Glen at the south end of the two biggest Finger Lakes) has alreay netted four hatch year Northern Saw-whet Owls as of September 27th, the first they have ever banded in September.

This is an irruptive species, whose major movements south depend on an adundance of voles during the northern boreal breeding season.  It’s been said that this summer was a good one for the little owls, so there are many  additional “kids” who will be spilling south this fall.  Stay tuned for our official public owl banding start date, but think mid-October…. In the meantime, public songbird banding continues every Tuesday and Thursday mornings at Rushton, 6am-11am (unless it’s raining).  Hope to see you at the station!

There’s a lot going on out there,

~Blake

View from the Willistown Conservation Trust's Run-a-Muck course.
View from the Willistown Conservation Trust’s Run-a-Muck course. Photo by Blake Goll.

Filed Under: Bird Banding, Owls Tagged With: Bird banding, Black-throated Blue warbler, Nashville warbler, northern saw-whet owl banding, rufous hummingbird migration, Tennessee warbler

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

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