Fall Bird Migration

By Jasmine Lee, Communications Intern

Fall migration, the large-scale movement of birds from their summer breeding homes to their winter grounds is part of an annual cycle that is undertaken by more than half of all the birds in North America. Unfortunately, it is estimated that in the U.S. alone, one billion birds die each year as a result of collisions with glass windows, walls, and other structures, with numbers typically spiking during migration months. At the Schuylkill Center and the Wildlife Clinic, warblers of all kinds, flycatchers, woodcocks, and even hummingbirds are passing through as they make their way down south for the winter. 

As a student at the University of Pennsylvania obtaining my Masters in Environmental Studies, I have a special interest in birdwatching and ornithology, in addition to my career interests in conservation science. Back in March, I moved from West Philly back to my parents suburban New Jersey home due to the pandemic, and I was excited to spend some time closer to nature, as opposed to the bustling city streets. Using a recycled glass beer bottle, I fashioned a homemade bird feeder to attract some feathered friends for the spring.

Homemade bird feeder: birdseed comes out from the bottle and into the tray.

Attaching it to the trees in our yard posed a problem, as the squirrels had easy access to the birdseed tray and would often scare off any potential bird visitors. I decided to use an old patio umbrella frame to secure the bird feeder so it was away from any branches where the squirrels could jump onto it.

Feeder attached to umbrella frame. Bag of finch food hanging off to the side. 

Within hours of setting up the frame and feeder, we saw a cardinal munching from the food tray. I stayed at our kitchen table all morning so I could watch the feeder through the window.

Northern Cardinal

Brown-headed cowbird on feeder, American goldfinch on finch food bag

We did continue to fight the squirrels on occasion, when they tried to climb the umbrella pole. Eventually, we removed the bottle because it encouraged them to to climb up and gorge themselves.  Now, my dad puts out a handful of seeds for the birds each day, but not enough to tempt the squirrels.

Now that it is October, the feeder is less busy, although we do still see the occasional fall migrant passing through. We are looking forward to springtime next year, when the migratory songbirds return. 

As part of our #YearOfActionChallenge, the Schuylkill Center encourages you to take some actions to help protect our travelling feathery friends. 

  1. Urge your senators to co-sponsor the Bird-Safe Buildings Act requiring public buildings to incorporate bird-friendly building designs and materials.
  2. Apply decals, window guards, uv-coverings or other collision preventing materials to windows to make glass more visible to birds and reduce the chances of flying into them.

3. Turn off the lights! Many birds migrate at night, and can become disorientated by bright artificial lights, increasing the chances they will collide with a window. Whenever possible turn off excess exterior lights and reduce interior lights at night, especially those on higher floors or in building atriums. Visit Lights Out- Audubon to learn more.

Manayunk’s Falcons

Female peregrine falcon eating

Female peregrine falcon eating

Here’s a good news story for these COVID-consumed times.

For Philadelphia’s birding community, spring means many things, especially the return of migrating birds to famous haunts like Carpenters Woods in Mt. Airy. To Roxborough’s Judy Stepenaskie, spring means the return of a pair of peregrine falcons – famously the world’s fastest animal – to the nesting box tucked into the top of the steeple of St. John the Baptist Church, the tallest stone spire in Manayunk’s skyline.

As Judy has become the de facto adopted godmother of the peregrines that nest there, following them assiduously, photographing them, sharing their story with fellow birders, this year’s edition of the peregrine story would prove especially poignant. The pair residing in the steeple had been together since 2011, Judy christening the male “Manny” and the female “Yunk.” Last fall, as I shared in this column, Judy was stunned to learn that Manny was found dead, its leg cleanly severed, possibly in mid-flight. Judy suspected a drone she had seen buzzing the steeple, its owner likely only wanting to film a flyover around Manayunk. But Manny perhaps assumed the drone was another large bird, and being territorial, dove for the drone – and got its leg sliced off, the bird falling to the ground and perishing. This is only a theory, but it sadly reads as logical.

So would Yunk find a new mate? Surprisingly, Judy didn’t have to wait long.

Peregrines on christmas day

Peregrines on christmas day

“In December last year,” Judy told me, “the female was out on the nest box’s ledge every day for most of the day – I guess she was advertising her site.” On Christmas Eve last year, she continued, “I saw a male on the steeple, perched on one of the finials. On Dec. 25, they were sitting at the steeple together.” Such a great Christmas present!

“Both peregrines stayed around during the winter,” she offered. “And I did see them mate once,” she confided, “on one of the electrical towers over the train tracks. They mate multiple times.”

In mid-March, she knew from their behavior that they had laid eggs. Success!

“I saw them do a nest exchange,” she noted, “where the female comes out of the nest box and the male goes in,” taking his turn incubating the eggs, a process that takes a full month or so. “She was out for about an hour and a half, preening herself, as her feathers were all fluffed up.”

Also in mid-March another new male came by, checking out the site and possibly sizing up the male as a competitor.

“He perched on the steeple for quite a while, watching. The female came out and chased it off, and the male went up to the nest box.” The male cleverly let the much larger female – that’s one way Judy can tell the two apart, the female is significantly larger – handle the territorial chores. Our female stayed loyal to her suitor.

She recounted a similar 2015 story from Baltimore where one of the males raised in this nest – one of Manny’s boys – challenged an older male peregrine on a nest box that already had eggs in it.

“He successfully chased off the existing one in Baltimore,” Judy said, “so the female simply pushed the existing eggs off to the side, mated with the new male, and laid a new set of eggs.” They do mate for life, but it seems they are not sentimental.

That didn’t happen here – the newer male was chased off, and presumably is looking for opportunities elsewhere.

Sometime in mid-April, Judy thinks between the 16th and the 21st, the eggs will hatch.

“That’s when I’ll see the female come out on the ledge – she’ll be out a lot, and she’ll sit at the nest box opening while looking back.”

It is a bittersweet ending to the story.

“I’m sad,” Judy volunteered, “because I miss the old male. I’m not sure how the new one is going to perform as a dad, and the old one was great.” Manny did father almost 30 new peregrines over his nine-year reign, including the Baltimore one.

Has she named the new one?

“I was thinking of MM2, short for Manayunk Male 2.” And she has already renamed Yunk, as there is no Manny as her companion anymore. Its new name? “I call her Liz,” Judy said, “as in Elizabeth, because she was hatched from a nest up in Elizabeth, New Jersey.”

While the names Liz and MM2 don’t have quite the cache of Manny and Yunk, it’s great to have a pair of peregrines back atop the steeple at St. John’s, producing more of these extraordinary but still-endangered birds.

Continued thanks to Judy for serving as the loyal falcon godmother, and thanks to the church for so graciously hosting them all these years.

peregrine falcon 3.15.20

 

Written by Mike Weilbacher, Executive Director

 

Nature Preschool meets our pileated woodpecker

By Leigh Ashbrook

Editor’s note: one of the largest– and rarest– birds in the Schuylkill Center forest is the pileated woodpecker, our largest woodpecker with a wood chipper for a beak. We’ve seen them here this winter, and Nature Preschool has become enchanted by them. One of our teachers, Leigh Ashbrook, also a great birder, teaches about birds in the school, and writes about her students meeting them recently.

pileated chris petrakPhoto: Chris Petrak

Sixteen Nature Preschoolers are meandering along the Widener Trail toward the bird blind, flanked by trees of the second growth forest. Out of the woods on their left an emphatic Kukukukukukukukuk rings through the woods. One of the teachers calls out, “What do you think made that sound?” As the children turn their ears toward the source of the raucous call, the teacher then calls out, “We hear you, pileated woodpecker! Where are you?” Some of the preschoolers laugh, some repeat the question. The class is treated to the sight of a pileated woodpecker flying through the woods, long, slow wingbeats and its great size making it easy to find and follow until it disappears past Founders Grove. 

Along the Widener Trail is one of the locations here at the Schuylkill Center where hikers and birders can often find these marvelous woodpeckers.

Some of the locations that the pileateds tend to frequent are some of the very tall trees beside Fire Pond, and they will announce their presence with their kukukuk call, or perhaps their irregular, sonorous drumming on a dead tree. We have also heard the pileateds in the woods surrounding the Butterfly Meadow, working the loop of trees by the maintenance shed, the lower section of the upper fields trail leading to the ravine loop, and as far down the slope as Polliwog Pond. The most delightful sightings of this striking crow-sized woodpecker for our Nature Preschoolers, however, where they have been most visible and accessible to the young feeder watchers, has been at the suet feeders just outside the Sweet Gum classroom on the back side of the building. There the preschoolers are participating in Project FeederWatch, and both the male and female pileated woodpeckers have made appearances at eye level and even on the ground at times, amazing the children and adults. One cannot remain unimpressed by the sight of these marvelous birds!