Yearly Archives: 2019

Named For His Crest

Brahminy starling in India (photo by Allan Hopkins on Flickr, Creative Commons license)

The brahminy starling (Sturnia pagodarum) from the Indian subcontinent was named for his black crest because it resembles the sikha hairstyle worn by Brahmins. He looks like a Brahmin when his feathers are at rest (above).

However, he raises his head feathers frequently.

Brahminy starling at Gilgit-Baltistan, Pakistan (photo by Imran Shah on Flickr, Creative Commons license)

Watch his crest as he sings in this video.

He’s a pushy bird whose shape, behavior and song remind me of our European starlings (Sturnus vulgaris). He’s not in the same genus … but close.

(photo by Allan Hopkins on Flickr, video by Jerubal on YouTube)

A Peregrine Hero Has Passed

Among the heroes of the peregrine falcon’s restoration in North America, Tom Cade was legendary. During his lifetime peregrines went from plentiful to nearly extinct. Today their population is healthy and growing, thanks in great part to Tom Cade’s efforts and dedication. He died this month at age 91.

Tom Cade was a falconer nearly all his life. He became hooked on peregrines at age 15 when one flew close overhead on its way to capturing prey. That was in the early 1940s when the peregrine population was still healthy in North America.

By the mid 1960s Dr. Cade was the head of Cornell Lab of Ornithology, the peregrine population was in free fall, and he could see it happening. The situation so alarming that he and other raptor experts were desperately trying to find out why before it was too late.

In 1965 they convened a conference about the peregrine’s decline at the University of Wisconsin, Madison that became the catalyst for peregrine recovery. At that point they knew the decline was due to DDT and dieldrin but they had no proof. (Proof came later from Derek Ratcliffe.) Meanwhile, agricultural experts argued it couldn’t be caused by pesticides; the pesticides were so useful.

In a 2015 video on the 50th anniversary of the Madison Conference, Tom Cade told how the conference changed the peregrines’ future. The transformational moment came when Jim Rice, a renowned falconer and naturalist from Pennsylvania, spoke nine words. It changed Tom Cade’s life. See him tell the story here.

After the conference Tom Cade was key in all that happened next, especially in shaping the captive breeding program and peregrine reintroduction. DDT and dieldrin were outlawed in the early 1970s. By 1999 peregrine falcons were plentiful enough in the western United States that they were removed from the Endangered Species List.

In 1970 Tom Cade co-founded The Peregrine Fund and worked with them for the rest of his life to conserve raptors around the world. See their tribute and remembrance video here.

We all stand on the shoulders of the great conservationists who went before us. We mourn Tom Cade’s loss but we celebrate his incredible contribution to conservation and to peregrine falcons.

Thank you, Tom Cade. Your inspiration lives on.

Read Tom Cade’s obituary in the New York Times. His book, Tom Cade: A Life in Science and Conservation by Tom Cade and Clinton M. Blount is available here on Amazon. The cover, which illustrates this article, shows Tom Cade with his gyrfalcon, Krumpkin, 2008.

(credits: Information on Tom Cade’s life is drawn in part from his obituary in the New York Times. photo: Cover of Tom Cade: A Life in Science and Conservation by Tom Cade and Clinton M. Blount via Amazon)

Sap Freezing

Frozen sap of red oak, 10 Feb 2019 (photo by Kate St. John)

The weather this month has been up and down like a yo-yo: A low of 6oF on February 2, highs in the 50s and 60s for six days, then a low of 14oF on February 9. During those warm days the sap started running in the trees. I wouldn’t have noticed except …

On February 10 during a walk in Schenley Park I found flash-frozen sap on the damaged trees. At top, a fallen red oak made a red-orange waterfall. Below, a small amount of sap in a fungi-encrusted tree dripped like orange ribbons.

Sap runs and freezes inside healthy trees, too. We just can’t see it.

(photos by Kate St. John)

Gifts From Crows

One of many gifts from crows (screenshot from BBC video: Gift giving crows)

15 February 2019

Four years ago in Seattle, eight year old Gabi Mann consistently fed and interacted with the crows in her backyard. She formed such a tight bond that she could recognize individual crows by sight and gave them names. The crows rewarded her by bringing gifts.

Gabi feeds the crows in her backyard (screenshots from BBC video: Gift giving crows)

Many animals give gifts to members of their own species but crows and other corvids are the only ones known to give gifts to humans. As John Marzluff explains in the video below, crows will do this for people who feed them a lot and pay attention to them, or even rescue them.

When I read about this several years ago in Marzluff’s book Gifts of the Crow, I briefly thought about trying to make friends with crows but decided it would be a difficult relationship. If your friendship with crows is based on food they remember your generosity and bring their friends. Lots of friends. They can be quite demanding and don’t understand when you stop feeding them. Not everyone appreciates this.

Gabi’s story made international news in February 2015 but we don’t hear about it anymore. Six months after the video was filmed two of Gabi’s neighbors sued, demanding $200,000 and a court order prohibiting the Mann family from putting out more than a 1/4 pound of bird food. It took a year to settle the lawsuit. The details were not made public.

Crows remember the faces of those who are mean to them and those who are especially kind. I’m sure that a few special crows remember Gabi.

(video embedded from BBC on YouTube)

Love Is In The Air

Harmar bald eagle calls from her perch (photo by Gina Gilmore)

Love is in the air at the Harmar bald eagle nest. Gina Gilmore saw lots of activity last weekend.

Sometimes the female calls for her mate (above). He flies in to see her and they mate (on 8 Feb).

Harmar bald eagles mating, 8 Feb 2019 (photo by Gina Gilmore)

… and mate again (on 10 Feb).

Harmar bald eagles mating, 10 Feb 2019 (photo by Gina Gilmore)

They’re getting ready to nest, though their first egg is at least a week away, maybe more.

Harmar bald eagles near each other (photo by Gina Gilmore)

The Harmar pair historically lays 10-18 days later than the Hays bald eagles whose first egg arrived this week on 12 Feb 2019 at 6:45pm. In 2015-2018, Harmar’s first egg was between February 20 and March 9.

This year there’s no camera on the new Harmar nest so we’ll have to watch the female’s behavior to know when her first egg arrives.

In the meantime love is in the air. Happy Valentine’s Day!

(photos by Gina Gilmore)

How Many Blue Jays?

Great Backyard Bird Count 2019

In the winter of 2012 Pittsburghers noticed we had very few blue jays in our area. It was such a mystery that I posted an article in February asking folks to tell me if they’d seen any blue jays lately. Seven years later the responses are still coming in.

Most people respond when they don’t see any blue jays because they miss them. It turns out that blue jay frequency varies throughout the year and can drop locally when the habitat changes, especially if oaks are cut down. (Blue jays rely on acorns.)

Our blue jay count surges during spring and fall migration because a lot of them breed north of us. In Allegheny County (Pittsburgh) there’s also a mysterious mini-surge every year in mid February. What’s that about?

eBird frequency of blue jays in Allegheny County, PA, 2014-2019

See seven years of blue jay reports and musings at Have You Seen Any Blue Jays Lately?

Count your own blue jays during the Great Backyard Bird Count this weekend. How many birds will you find?

(image credits: Great Backyard Bird Count poster, eBird report on frequency of blue jay sightings in Allegheny County, PA, 2014-2019; click on the captions to see the originals)

Imprinting Error

In 2011 crane watchers in Homer, Alaska noticed that a single Canada goose was convinced he was a sandhill crane. How did this happen? And can it be undone?

As described by Encyclopedia Britannica, imprinting is a form of learning in which a very young animal fixes its attention on the first object it sees, hears, or is touched by and thereafter follows that object.

Imprinting is especially important for nidifugous birds — species that walk away from the nest shortly after hatching — because they must immediately follow their mother in order to survive. They imprint by sight and the lesson lasts a lifetime. If the first thing they see is their mother or another member of their own species, life is good. If not, they grow up believing they are another species and will never find a mate.

Imprinting happens at different times for different species so wildlife centers use surrogacy techniques, described here at the Wildlife Center of Virginia, to insure that baby birds don’t imprint on humans. If they do they cannot be released in the wild.

Human imprinting is well known among cranes so caregivers in the Whooping Crane Recovery Program dress in crane costumes when in sight of the young birds.

Whooping crane costume worn by biologists (photo by Steve Hillebrand, USFWS)

Birds use filial imprinting but there are other forms. Studies have shown that we humans prefer the first computer software we use and then compare all new software to that first and favorite app. It’s a form of imprinting called Baby Duck Syndrome. “I don’t like this; it doesn’t work like Microsoft Word.” Quack! Quack!

As for the Canada goose in the video, observers speculated that the bird’s mother laid his egg in sandhill crane nest. When he hatched he saw a sandhill crane and imprinted on the wrong species. He’s the victim of an imprinting error.

(video by Nina Faust on YouTube. photos from Wikimedia Commons; click on the captions to see the original)

Watch a Nest in Bermuda

Screenshot from the Bermuda cahow cam at Cornell Lab

Nesting season began last month for this pair of Bermuda cahows when the female laid her single egg on 10 January 2019. The parents are now taking turns at incubation duty. They expect the egg to hatch in early March.

Watch them in their nest burrow at Cornell Lab’s Bermuda Cahow Cam.

And for a preview of things to come, here’s a video of last year’s activity.

(screenshot from the Bermuda cahow cam and a video of 2018 Bermuda cahow highlights, both from Cornell Lab of Ornithology)

Zooming Past Jupiter

What is it like to get close to Jupiter?

In this NASA video a robotic spacecraft called Juno makes its sixteenth fly-by (Perijove) since arriving in mid-2016. Its closest approach is almost dizzying. I feel better when the spacecraft zooms away and we see the swirling clouds.

Did you notice that Jupiter is on the sound track, too? The fourth movement of Gustav Holst’s The Planets is called Jupiter, The Bringer of Jollity. Listen to the entire majestic movement here.

This video was featured on NASA’s Astronomy Picture of the Day on 5 February 2019.

Pittsburgh Parks Listening Tour, Now Through April

Schenley Park, Panther Hollow lake, April 2017 (photo by Kate St. John)

If you live in the City of Pittsburgh and visit our parks you’ll want to participate in this survey, available now through April 2019.

Pittsburgh has 165 parks sprinkled throughout our neighborhoods from small playgrounds to regional parks — Schenley, Frick, Riverview, Highland and the future Hays Woods. The City’s goal is to have well maintained parks within a 10-minute walk of every resident.

Perhaps you’ve noticed that infrastructure is crumbling in many of them. The park system gets big donations for capital improvements (bricks & mortar) but not for maintenance, so we have new buildings like the Frick Environmental Center but deteriorating playgrounds, landscape and trails. How do we fix that inequity and how much will it cost?

The City of Pittsburgh and Pittsburgh Parks Conservancy have teamed up for the Parks Listening Tour, a citywide initiative to hear what neighbors love about our parks and what they would love to improve.

The Listening Tour includes meetings in every neighborhood and online tools. Attend a meeting to find out more or go online to view the presentation and take the survey. Click here for the schedule and online tools.

This is your chance to speak up for the parks. Your comments will shape their future.

(acknowledgements: text and tour logo from the Pittsburgh Parks Conservancy, photo of Schenley Park by Kate St. John)