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Showing posts with label hawk. Show all posts
Showing posts with label hawk. Show all posts

Tuesday, October 2, 2012

A Fish Hawk's Visit

London's Tate Modern has its resident peregrine falcons. New York's got red-tailed hawks nesting on 927 Fifth Avenue. Not to be outdone, little Ballard's home to a pair of ospreys that raise their young near an old train trestle close to the Ballard Locks.

(Never mind that Seattle boasts not only red-tails and peregrine falcons but also Cooper's hawks, sharp-shinned hawks, and even bald eagles and merlins among its breeding birds. But today I'll stick to Ballard, the city within a city that is still disgruntled about being annexed to Seattle in 1907.)

The Ballard ospreys started nesting on an old telegraph pole belonging to a railway in 2009. In 2011, the pole was removed as a hazard, depriving the birds of a future nesting site--but was replaced early in 2012 by a platform tower built just for them. The ospreys quickly moved in (even birds know that the three most important real-estate considerations are "location, location, location") and raised a new brood.

I had never seen an osprey before moving to Washington State in 1989; the first one I spotted was flying over Lake Easton carrying a massive fish headfirst, osprey-style, in its talons. Since then they've turned up on nearly every trip we've taken: nesting atop a snag on the Oregon coast, plunging into a lake in Yellowstone National Park, tearing apart fish while perched on a pole in an apple orchard near Lake Chelan.

The most recent osprey soared into view as I sat with my mother on a porch swing on Bainbridge Island. There we were, sipping lemonade, winning front-row seats to wildlife drama without exerting a speck of effort.This bird lugged its heavy load to the tipped-over top of a nearby conifer. Its sharp beak ripped into the fish. It tossed fins and scales aside as it fed; they sparkled as they tumbled to the ground. In between bolting fish, the osprey turned to fix us with its golden glare.


After a while, it paused, still clutching the fish's backbone, the head and tail flopped over on either side of the branch. Then the bird most dramatically displayed the behavior beloved of professional bird photographers--namely, a perching bird's tendency to release waste before taking off, thereby giving the photographer a signal to get ready for the beautiful soaring scene.

Well. It's one thing when you're talking about a little wren letting loose before flying. When it's a big, hefty raptor expelling its cargo against a deep-blue sky--to a distance of six or so feet behind the bird--let's just say you would be very glad not to be within striking range.

(A long time ago I heard someone at a reading share a poem that called bird poop "the white apotheosis of the cloaca." We used this term for a very long time, as in "You might want to wash that white apotheosis of the cloaca off the picnic table before we set it" and "Ick, there's white apotheosis of the cloaca on the windshield." I can only think the poet had a defecating osprey in mind when he penned this line.)

Ospreys are found worldwide and always near water--the best place for these fish hawks to catch fish, after all. Their toes, with undersides covered in rough, spiky scales, are adapted for the task of grappling slippery, wiggling fish. They can also move one of the outer toes so that they have either one or two of their four toes pointing backward, which further aids them in gaining a grip on a struggling fish.

It seems remarkable that a bird circling 50 to 100 feet above the water can pinpoint a fish visually, compensate for the way water bends light, then suddenly drop and smack down on the surface to seize its prey. Yet they manage to succeed in this task nine out of ten times when they dive. Then off they flap, usually carrying the fish pointing forward to minimize air resistance.

In his epic work Birds of America, John James Audubon rhapsodizes about the courtship and shared incubation of ospreys in a manner most wonderfully anthropomorphic:

"[During the breeding season]....The males are seen playing through the air amongst themselves, chasing each other in sport, or sailing by the side or after the female which they have selected, uttering cries of joy and exultation, alighting on the branches of the tree on which their last year's nest is yet seen remaining, and doubtless congratulating each other on finding their home again.....The male assists in incubation, during the continuance of which the one bird supplies the other with food, although each in turn goes in quest of some for itself. At such times the male bird is now and then observed rising to an immense height in the air, over the spot where his mate is seated....

When the Fish Hawk has attained its utmost elevation, which is sometimes such that the eye can no longer perceive him, he utters a loud shriek, and dives smoothly on half-extended wings towards his nest. But before he reaches it, he is seen to expand his wings and tail, and in this manner he glides towards his beloved female, in a beautifully curved line. The female partially raises herself from her eggs, emits a low cry, resumes her former posture, and her delighted partner flies off to the sea, to seek a favourite fish for her whom he loves."

I think the Ballard birds are an old married couple by  now; they'd probably just order in fish-and-chips from the local Red Mill if they  had cell phones instead of engaging in volatile public displays of affection. Either way, I'm looking forward to their return in the spring.

Friday, May 11, 2012

Marsh Meander at Magnuson, May 2012

Magnuson Park in Seattle was once a Navy airfield. Today, it's the site of a 350-acre park complete with lakefront beaches, grassy hills, sports fields, and many old buildings currently being used as offices or awaiting reconstruction for new purposes. Thankfully, some areas that were once concrete have been recreated as wild lands, including a beautiful marsh that weaves through areas of brush and woodland.

It's hard to believe that the artificial playing-field surface east of it functions as a forest floor, allowing water to percolate gently down to the marsh, but it does. The piping of the Pacific chorus frogs who've made the marsh their home is a testament to that.

We went for a walk through the marsh on a sunny afternoon recently, on one of the first spring days that even hinted that you could take off your jacket and sling it over your shoulder halfway through the hike. But the birds have been reveling in spring for weeks despite the gray skies, as evidenced by all the busy bug-gathering, stick-collecting, and singing going on.

Male gadwall swimming among reeds
Male flicker hunting for ants and other insects in the grass
Male redwing blackbird keeps an eye on his territory
I'm pretty sure this is a savannah sparrow, based on markings and song, plus they're on record as living here. This would be a first sighting for me...yay!

This crow harassed a red-tailed hawk mercilessly, but interestingly nobody came to his assistance...usually crows pour in to mob a predator. Crows are highly intelligent, so we wondered if perhaps all the other crows were thinking, "Oh, that's just our stupid neighbor yelling his head off about harmless old Harry the Hawk, who never goes after anything but rabbits and voles. Just ignore him." The hawk was certainly unimpressed by his heckler.

Friday, February 17, 2012

Super-Duper Cooper Scoop

This is the bird we saw. Distance, small camera, gray day--best we could do.
There are plenty of signs that hawks live in our neighborhood (the avian kind, not the war sort--this is Phinney Hill, after all). Sometimes on a walk you'll come across drifts of fluffy gray feathers encircling the base of a telephone pole, or a sudden explosion of feathers in the middle of a parking strip that indicates ground zero of an attack.

But you rarely get to see the hawks themselves.

Twice, sitting in the backyard, I've been startled by a large bird flying bullet-fast at low level, getting no more than a glimpse of sharply snapping wings before whatever-it-is disappeared behind shrubs and trees. Once, during January's snowfall, a small hawk darted above the merrymakers sledding on the hill.

And once, in Fremont, while walking to a coffee shop early on a Sunday morning in spring, I nearly tripped over an American kestrel that suddenly landed in front of me and seized a mouse that I hadn't even noticed (but it had locked in on from above the rooftops). It stared fiercely at me for a fraction of a second before flying off with its prey locked in its talons.

That was it for neighborhood hawk sightings until several days ago, when my daughter and I went for a walk with the dog. A few blocks from home, we suddenly heard a loud "Bek! Bek!" Looking up, we spied a large raptor perched atop a conifer.

"Dang," I said. "Figures I don't have a camera with me."

With that, my daughter offered to run home and fetch it. And she did. (Unexpected acts of generosity from one's adolescent offspring are something I cherish even more than the sighting of a rare bird.)

http://en.wikipedia.org/wiki/File:Accipiter-cooperii-01.jpg
I'm pretty sure this bird is a Cooper's hawk, a species known to frequent Seattle along with the smaller, similar sharp-shinned hawk. It appears to have a cap, unlike the "sharpie," and when it finally flew away, its tail had the rounded outline of a Cooper's (though I only saw it in silhouette against a dark gray sky).

There's also local lore to draw on to back up this assumption: Just last August, a local news blog featured photos of a Cooper's dining on pigeon in an area backyard, and Cooper's hawks have been mentioned in numerous newspaper articles over the past 20 years whenever there's space for an item about wildlife in the city. An old "Washington Birds" book published by the Seattle Audubon Society in 1968 also notes that the Cooper's "is perhaps the most common, or at least the most widely seen" of the accipiters (birds of prey with short, rounded wings and long tails).

My favorite local story comes from a friend whose son had a hamster, which he set outside in the yard in a hamster ball one warm afternoon. He was supposed to stay with his pet, but he skirted the rules to run inside and get a snack. When he looked outside, he saw a Cooper's hawk standing next to the hamster ball, staring hard at it. You can just imagine what was going through that bird's mind--perhaps the same frustration we all feel when confronted with newfangled, difficult-to-remove packaging.

Cooper's hawks prey mainly on small birds and are considered an important check on their populations. They're feisty birds, however, and aren't afraid to tackle larger prey, which accounts for their unofficial name of "chicken hawk."

Disparaging names like this one, which link a wild creature solely to how its habits may vex or harm people and their possessions, are typically avoided nowadays because they unfairly portray the animal as "good" or "bad" when it's simply trying to make a living, but it hasn't always been this way, especially for predators.

In Audubon's description of the species, the naturalist--who surely knew that predators play an important role in nature and who only had good things to say about crows--described the Cooper's with terms such as "marauder" and "miscreant" and its killing of prey as a "murderous deed." (However, he does also call it "daring" and attributes it with "courage," and doesn't outright condemn it, so he was probably just employing the flourishes so typical of nature writing in his era.)

Naturalist William Dawson, writing more than 100 years after Audubon in the 1923 book Birds of California, seems to be gritting his teeth as he considers the Cooper's, which, after all, dines on the little birds he loves: "One never gets a clearer insight into the possibilities of cruel rapacity then when a Cooper Hawk comes dashing up into a thicket where you have been ogling Sparrows....It is as though an emissary of the nether world had broken from cover; and one feels all the virtue of a just cause in putting him to death."

Fortunately, Dawson wasn't in the habit of going around potting hawks (whereas Audubon, in writing about his collecting habits, always puts me in mind of Elmer Fudd blasting at everything in sight). Sadly, a century ago negative attitudes toward birds of prey were encouraged by some leading zoologists, who seemed to have a chip on their shoulders regarding certain animals that no amount of scientific evidence would ever dislodge.

No less a luminary than William Hornaday, one of the saviors of the American bison and founder of the Bronx Zoo, described the Cooper's hawk as "companion in crime to the [sharp-shinned hawk] and equally deserving an early and violent death." (Then again, Hornaday thought caging and exhibiting native African peoples in his zoo was a dandy idea.)

People still get irritated, of course, if predators make off with their chickens today, though most people (including farmers) are now aware of the beneficial services provided by raptors. Online comments about the pigeon-eating Cooper's in my area, for example, ring with pro-hawk endorsements and anti-pigeon invective (with the only complaining about nature's ways coming from one oddball vegan decrying the hawk's act as "terrible"!).

I'm thrilled to have spotted the neighborhood raptor at last. Now I don't have to go out and buy a hamster and a hamster ball to better my chances.





Friday, December 3, 2010

Winter Birds and Hawks on High

Spring may usher in a waterfall of warblers and other migratory birds, but winter's when my garden hosts the most avian variety. Warblers & Co. favor the thickly wooded parks up the hill and to the north of us in spring. In winter, though, slim pickings encourage species I don't usually see in my garden to stop by for a visit.
Townsend's warbler. Image from Wiki Commons credited to
http://www.flickr.com/photos/slodocents 

As noted in my previous post, a big snowstorm, below-freezing temperatures, and a well-stocked birdfeeder lured crowds of the usual suspects to our garden last week. As soon as the snow disappeared, so did the birds; they spread out to do their usual rounds instead of relying solely on what our yard had to offer. An aftereffect, however, may be that new birds have added our plot of earth to their daily checklist--at least I hope so.

One of these "snowbirds" is the Townsend's Warbler who visited last week. I saw a male of this species two years ago when our city was snowbound; this one was a female. I thought I saw her flitting through the tall shrubs out front this week but couldn't be sure.

The other is the beautiful Varied Thrush. The only other time I have seen a Varied Thrush in my garden was during the epic two-week snowpocalypse of winter 2008-2009. He flew out to perch in a street tree and soon drew a crowd of spectators, who pointed up at him and wondered about what he was. "I've never seen a robin that looked like that before," said one person, who recognized the bird as a thrush of some sort even if she didn't know it was not the same thrush species as the American robin.

Varied Thrush. Photo by Walter Siegmund from Wiki Commons.
So yesterday I was thrilled to spy a Varied Thrush in the garden under the birch tree, energetically tossing aside wet leaves as he searched for food in the company of a flock of juncos. I tried to get a picture, but as always, my career as a wildlife photographer was stymied by (1) having a small camera, (2) trying to shoot through wavy panes of 90-year-old window glass, and (3) fending off two curious cats constantly hopping up onto the windowsill to meow and put their faces into the camera lens or bump their foreheads against my arm.

So all I got was a blurry image of a Varied Thrush's tail sticking out from behind a tree trunk.

Cooper's Hawk. Photo by H. Gilbert Miller, from
http://crhabitat.blogspot.com via Wiki Commons.
I didn't even try to get a shot of today's exciting bird sighting: a Cooper's Hawk wheeling over the street at just above the height of a telephone pole. All I could see was his silhouette, but it was just like an illustration from a field guide come to life. His flap-flap-glide, flap-flap-glide flight was straight out of the book, too. Usually I only glimpse him as a streak pursued by angry crows, so it was nice to see him taking his leisure on this chilly morning.

Friday, November 5, 2010

Week of Weird Weather and Wonderful Wildlife

Nope, I didn't see a grizzly with a pumpkin on
the streets. This is Keema, a grizzly who lives
at the zoo, safely behind thick glass.
Typical Pacific Northwest damp fall weather took a holiday on Halloween this past week and also called in sick on several other days, perhaps having exhausted itself by pulling out all the stops on Monday with a record-setting rainfall.

But most surprising was the wildlife. The city gifted me over the past few days with an abundance of sightings, including some critters I'd never glimpsed in our streets before. (And I don't mean the two-legged cows, miniature unicorns, Godzillas, and oversized bees wandering on Halloween night.)

First, there was the bald eagle, sighted on Sunday, a day that was true to its name--blazingly sunny and balmy atmosphere. That day, we decided it was time to tackle the dreaded task of cleaning the gutters. Which we hadn't done in a decade, at least. But when we saw six-inch-tall plants sprouting from the southernmost gutter over the back of the house, we knew we couldn't avoid it any longer.

While teetering atop a ladder scooping up muck and lime-green moss, I chanced to look up and spied the eagle wheeling over our house. Chocolate-brown body, bright white head, spiraling against a turquoise blue sky. It was a fine reward for grubbing about in the gutter.

Bald eagles aren't an uncommon sight in the city--there are even several pairs nesting within its limits. But they never fail to amaze. A Cooper's hawk, on the other hand, is harder to spot. There are probably plenty of them living in city limits, but being smaller birds accustomed to hunting at lower levels instead of riding on rising vortices of warm air, one doesn't see them as often. But this hawk streaked across the road ahead of me as I walked the dog that day. Typically when I've seen a Cooper's in town, it's being chased by crows, but this one seemed to be flying below the corvid radar.

That night, while my dog and I accompanied a large duck, a nun, a witch, and a can of soup on a trick-or-treat tour of the neighborhood, we spotted a strange animal that is scarcely ever seen in the flesh--and actually we're not quite in agreement as to which normally-underground beastie it was.

It was scuttling about near the curb under parked cars after dashing down a driveway. The witch thought it was a lost guinea pig, and rushed over in an attempt to "rescue" it, with the soup can and the duck in tow. But they backed off when the clearly-not-a-guinea pig trundled out from under a car and bored its way back up the driveway, seemingly oblivious to onlookers.

It looked like a very determined fur-covered butternut squash. Luna (the dog) was flabbergasted as the thing practically strolled right under her nose. Normally she lunges at her leash to try and chase squirrels; now, with a squirrel-esque summer sausage practically on her paws, she just gaped in amazement.

A young mountain beaver
(from a U.S.G.S. photo)
I'm thinking it was a mountain beaver, judging by its size, shape, relative speed, and apparent lack of a tail. The soup can is more inclined to the view that it's a Townsend's mole. Both animals are often active at night--the mountain beaver gathering plants, the mole hunting worms or gathering nesting material.

Midday Thursday, I spied another small scurrying scamperer I've never seen in the streets before (though I know they live in the parks): a chipmunk, species unknown. It was skittering about in the yard and on the sidewalk in front of a house one block over that was built to very exacting and expensive "green" standards. Which makes me wonder if all newly built "green" homes come complete with adorable chipmunks.

Weather-wise, the week's wonders included Monday's rainfall of 1.56", a new record for November 1. And Wednesday boasted a high of 74F, the record high temperature for November 3.
If I were superstitious, I'd be looking for signs and omens in a Halloween week of weird weather and wildlife. But, oh, maybe it's just climate change.