Showing posts with label fallout. Show all posts
Showing posts with label fallout. Show all posts

Thursday, March 30, 2017

Invasion of the Timberdoodles!

Ed Gaillard: birds &emdash; American Woodcock, Central Park
enjoying the stream in the morning light

The day after the big March storm, people noticed a huge fallout of American Woodcock (fondly called "Timberdoodles") in the city. (A "fallout" is when a lot of migrants descend on a place all of a sudden; usually because they;re forced by the weather.) The first #birdcp tweets came from the north end of Central Park, the Loch and Ravine area. Four woodcock...no, six woodcocks, um eight, no, make that twelve... Then the first report from the Ramble, two in the stream on the Point.

So I slogged into the Ramble on the way home from work. Didn't find the ones on the Point, but there were four down in the Oven in the fading light, and then two more in a stream between there and Azalea Pond.

Ed Gaillard: birds &emdash; American Woodcock and Grackles, Central Park
had to share the stream with bathing Grackles, though.  noisy neighbors!

I went back in the morning. Much better light, and even more Timberdoodles. Still two in that stream, and then:

Ed Gaillard: birds &emdash; American Woodcocks, Central Park
pile o' timberdoodles

A whole pile of them in the Oven. I counted and watched, and then this little scene played out:


Ed Gaillard: birds &emdash; American Woodcocks, Central Park
into this peaceful scene...

Ed Gaillard: birds &emdash; American Woodcocks, Central Park
...came a chilly interloper from under the bank!

Ed Gaillard: birds &emdash; American Woodcocks, Central Park
who waddled over to the pileup...

Ed Gaillard: birds &emdash; American Woodcocks, Central Park
...and pushed himself into the middle. 

So that was six in the Oven before I left for work. Meanwhile, Anders Peltomaa saw nine at the Triplets Bridge, and a Wilson's Snipe. And then the reports really got going. Tom Fiore estimated that there were at least a hundred Woodcock reported in Manhattan, and many more in Prospect Park in Brooklyn.

Some of these birds were in trouble. Woodcocks have a tendency to fly into building. This is a problem for many birds, but Timberdoodles especially because they don't see directly in front of them very well. Their eyes are way high and towards the back of their head, which is great for scanning for predators, but not so great for flying. According to a New York Times story, the Wild Bird Fund (local wildlife rehabilitators; great people, you should send them money) had 55 Woodcocks brought to them.

Others fared even worse. Woodcocks, as I said, have their eyes placed so they can scan for predators. They need this because they are slow and tasty, and even with the nearly 360-degree vision, they rely heavily on their excellent camouflage. When they're on a forest floor covered in leaves or pine needles, they pretty much disappear. But when thy're on snow, or the bare muddy banks of a stream...well, that's a problem. Birders watched Timerdoodles get snatched up by hawks all day long. Probably at least 50 in Central Park alone; I heard from one birder that he watched a single young Red-Tailed Hawk eat three in close succession. It was a raptor buffet.

Ed Gaillard: birds &emdash; Wilson's Snipe, Central Park
Wilson's Snipe!

So when I finally made it to Triplets Bridge, only three of the nine woodcock Anders had seen in the mrning were still there. But the Wilson's Snipe abided, foraging peacefully in the stream.

Ed Gaillard: birds &emdash; Wilson's Snipe, Central Park
ruffled

At one point he ruffled himself up and preened a bit. I've never had such a good close view of a Snipe before.

Ed Gaillard: birds &emdash; American Woodcock, Central Park
survivor

The remaining timberdoodles were ware buy still active. One came out and walked across the stream near the Snipe, giving me a chance to see both of these similar birds together.

Ed Gaillard: birds &emdash; American Woodcock and Wilson's Snipe, Central Park
comparison

The Wilson's Snipe by itself gives the impression of being a largish bird. It is not. It was much smaller then the Woodcock, which is itself not huge, being rather smaller than a football.

Ed Gaillard: birds &emdash; American Woodcock, Central Park
in the hollow

That woodcock eventually nestled itself in a hollow, where it foraged.

Ed Gaillard: birds &emdash; Wilson's Snipe, Central Park
more Snipe

Many of the surviving Timberdoodles flew out that night, but some remained in diminishing numbers. I saw one as late as Sunday in the Ramble. They should be close to finishing up migration at this point, though I know that Gabriel Willow is leading a group to Floyd Bennett Field in Brooklyn on Saturday to see their spectacular mating flights.


Sunday, May 22, 2016

Mother's Day Fallout

Ed Gaillard: birds &emdash; Prairie Warbler, Central Park
Prairie Warbler

One thing you will hear birders talk about is "fallout". This doesn't have anything to do with nuclear weapons--it's about bird migration. Sometimes during the spring migration, when conditions are just right--southerly winds at night, then rain a little before dawn and heavier storms just to the north--you wake up in the morning to find that migrating birds have descended on local parks and green spaces in huge numbers. They've been forced to fly low by the rain, and some have had to turn back from the storms in the north, and they all fall out of the sky after a long night's flight to frantically feed and then rest for the next night's flight.

On Mother's Day, May 8, New York City had an epic fallout event. By noon, according to one experienced birder's compilation of observations over a hundred species of bird had been seen in Central Park, including two dozen kind of warbler.

Ed Gaillard: birds &emdash; American Bittern, Central Park
American Bittern

In the Ramble, three very unusual migrants were within a hundred yards of each other. In the area called the Oven, and American Bittern spent the day hunting in the tall reeds. It's bulbous form was clearly visible from the rocks overlooking the Oven from the west ("Willow Rock").

After the early rain, it turned into a beautiful day, and many people rented rowboats on the Central Park Lake. When they approached the Oven, birders would call to the rowers to turn back so as not to disturb the Bittern by coming too close.

Ed Gaillard: birds &emdash; Chuck-Will's-Widow Central Park
Chuck-Will's-Widow

Fifty yards to the northeast, a Chuck-Will's-Widow roosted very close to a path. Chuck-Will's-Widow (named for its call) is a nighttime hunter of insects. By the time it was discovered in the mid-morning, it had eaten its fill and was quietly waiting for evening, relying on its cryptic coloration to hide it from the large mammals only a few yards away.

Let me digress here. On twitter, I saw a drawing by Alan Messer of the Chuck and environs. It's a great example of how drawing can sometimes be much truer than photography. The detail and depth-of-field of the drawing were simply not possible in a photo under the dim lighting.

Ed Gaillard: birds &emdash; Yellow-Crowned Night Heron, Central Park
Yellow-Crowned Night Heron

Fifty yards in the other direction from the Bittern, a Yellow-Crowned Night Heron hid out at the end of the Point, red eye glaring balefully out of the depths of a willow tree. So, three birds, all rare visitors to Central Park, sen within about ten minutes.

Ed Gaillard: birds &emdash; Veery, Central Park
Veery

Of course, there were a lot of more expected migrants. All the brown thrushes were in, like the Veery above. On the south slope of Summit Rock, right by Central Park West, Tom Fiore had sixty thrushes in an area about 40x50 feet, including Hermit Thrush, Veery, Swainson's Thrush, Wood Thrush and Gray-Cheeked Thrush at least.

Ed Gaillard: birds &emdash; Cape May Warbler, Central Park
Cape May Warbler

Maybe the biggest story was the warblers. According to Tom Fiore's end-of-day roundup of sightings, people saw at least 28 species of warbler in the park (among 115 or more total species) by day's end.

Ed Gaillard: birds &emdash; Hooded Warbler, Central Park
Hooded Warbler

Considering that there are only 35 or 36 species of warbler that move through the area in migration, and three of them are normally done migrating before May, 28 in a day is really impressive. (I had only twelve that day, myself, and 48 total species, but a big chunk of my day was spent on social obligations.)

Ed Gaillard: birds &emdash; Red-Bellied Woodpecker, Central Park
Red-Bellied Woodpecker

And of course, the full complement of permanent resident birds were on hand. Here's a Red-Bellied Woodpecker portrait to finish up.