Showing posts with label dunlins. Show all posts
Showing posts with label dunlins. Show all posts

Wednesday, April 15, 2015

Elegant in black

The dunlins were feeding on Boundary Bay this afternoon; small flocks criss-crossed from sandbar to sandbar, some coming, some going, some more coming back. They never stay long in one place. I noticed that when they run on a sandbar, they all run at about the same speed, usually in the same direction, so that from a distance, they look connected, like wheels on an axle.

One group had a few odd-balls; I could see, even at a distance, solid black patches. I tiptoed up as close as they would let me; still too far for the camera's liking.

Black-bellied plovers, in full breeding regalia.

The paler version is either a female, or immature.

Some of the dunlins are wearing the black aprons, too.

And far away, halfway across the bay, a rafts of ducks and gulls waited for the tide to drop. It was going out too slowly for me; I left the birds and came home for supper.


Thursday, February 06, 2014

Who cares if it's freezing out there?

Not us, not when the peeps are feeding on the beach.

Looking southwest. Silvery sea and the beginnings of a sunset. The black lines on the water in the background are more birds.

Looking north; peeps not minding Laurie. He's just a step away, off camera to the right.

Ankle-deep water (to a dunlin's ankles, that is.)

Sand patterns, with a few dunlin tracks



Friday, January 04, 2013

Sandpiper mnemonics

Joey Slinger, in Down and Dirty Birding, classifies the Sandpiper clan into three categories: Great Big Sandpipers*, Middle-sized Sandpipers**, and "Peeps"***. Ours, on the Boundary Bay flats, are middle-sized.

When I get a decent photo or two, I try to identify them, and then memorize the clues for each one.  I'm not all that good at it.

So here's my latest attempt at hammering something into my hard skull.

Last Tuesday, the tide was part-way out in the Centennial Beach area. Recent storms and high tides had scoured the upper beach clean. Most of the driftwood was 'way up there in front of the houses. The few rolls of drying eelgrass were just below that, far above their usual resting place. And most of the sand was covered with about an inch of loose sea-bottom scum.

There were no snails to be seen, but many small clams were lying loose on the sand, washed out of their hiding places. The gulls were dropping them out on the sandbars, and squabbling noisily over who got there first. A pair of eagles sat on the farthest sandbar, watching the gulls.

Along the line of wavelets at the shore, hundreds of peeps were dancing and bobbing. Further out, flocks of bigger ones stood, belly-deep, head down, bills probing. The water out there was ankle-deep to a gull; this is a very flat beach.

A dunlin.

The dunlins are the larger of the two. My latest bird book gives a length of 21.5 cm. In breeding season, (for the two weeks of breeding season they hang around), they are distinctive, with a black belly and reddish back, but most of the time, they're just another peep. But looking closely, if they don't have their bills buried up to the hilt in mud, I can see that the bill is fairly long, and turns slightly down at the tip.

Bill above water, and bill in normal pose.

These are the pipers that forage a bit further out. They move about slowly, digging deep into the mud as they go. Occasionally, they all rise at once and move on down the shore, where they settle and up-end themselves looking for sand dwellers, probably worms.

Dunlins doing their thing.

We often see flocks of these, out over the water, looking like a speeding grey cloud that briefly flashes white as it turns for the return trip.

The sanderlings are the little ones that race along at the very edge of the water, pecking quickly and moving on. Run, run, run, peck, run, peck, run, run, peck, peck . . . Their legs move, says my book, "like (a) windup toy." A perfect description.

They fatten themselves on those little amphipods, Americorophium salmonis, catching them as they wait at the mouth of their burrows, just before the tide drops and they move deep into the sand.

Smaller than the dunlin; 19 cm. long, and with a shorter, straight bill. Extremely cute.

They're a lighter shade of brown than the dunlins now, but will darken up for breeding season.

Sanderlings or dunlins flying. Both species have a white wing stripe that shows up in flight. (Click to see full size.) The ones flying upside-down are reflections.

So: sanderlings run, sanderlingsanderlingsanderlingsanderling, legs pumping away constantly. Dunlins are more serious; they get the work dun, not giving up until they've dug out their worm. And their bills point and turn dowun. Think I can remember that?

*Great Big Sandpipers I've seen around here: Whimbrels, at Iona Beach.
**Middle-sized Sandpipers, ditto: Yellowlegs, greater and lesser. Boundary Bay, Crescent Beach. Dowitchers, Reifel Island, Dunlins and Sandpipers, Boundary Bay and Semiahmoo Beach.
***Peeps: Least Sandpiper, Oyster Bay, south of Campbell River. Least is a good word for it; these are tiny!


Saturday, January 15, 2011

Eat and run, run and eat ...

The colder it gets, the happier the peeps are. These mid-winter days, rafts of tiny birds float on the waters of Boundary Bay, from one shore to the other, or drift in low-flying clouds as if tossed by a stray breeze. Hundreds more hunt along the shore for tiny mud critters. Prey was plentiful last week; the dunlins and sanderlings were feasting.


I love those cute running legs!

Tuesday, December 14, 2010

When in Rome (or Boundary Bay) ...

Laurie noticed them first. We were watching peeps along the water line at Boundary Bay. They foraged in small groups, about a half to one dozen at a time, strung out as far as we could see either way. Most of them were these:

Sanderlings in winter plumage

Small, round, pale grey. bright white. Black bill and feet.
 My bird guide, Audubon ... Western Region, says,
"Unlike most sandpipers, they are quite tame even during winter and are a delight to watch as they retreat and advance with the breaking waves." ... flocks of Sanderlings ... spread out in long lines along the water's edge and run in small groups of twos or threes."
That describes them perfectly. They allowed us to come within a couple of metres from where they were feeding, and even then, ran towards us. The waves were smallish, not quite enough to swamp the birds, so they didn't retreat, but let the water wash over them even as they probed for food.

The guide also mentions the stripe on their wings, seen in flight.

The book mentions a white stripe: I see the dark edge of it on a mostly white bird.
What Laurie saw: among all those happy, peeping, grey birds, there were three different ones, blending in, acting just like the others.

Just a bit longer and thinner, and a definite brown, with a brown collar. Dark brown legs and bill.

And the bill is longer than the sanderlings', and just slightly curved downward.
As far as I can tell, they're dunlins, separated from their usual hundreds-strong flock. (I could easily, easily, be wrong.*) We don't see dunlins this close, normally; one step too close (and that's 'way back where we have to squint to see them), and the whole shebang lifts itself up, does a rapid series of aerial acrobatics, and settles far off in the distance. These three have taken on the calmer habits of their new companions.

*I could be wrong on the sanderlings, too; peeps in general confuse me.

Friday, January 04, 2008

2007, Gran Finale

The weather for the last few weeks has been predictable only in that it was cold and usually wet. Snow, slush, rain, wind, ice, snow, rain... We weren't getting out much. But last Saturday, the sun came out from behind the clouds and looked like it was planning to stay out.

We bundled up, just in case, and went down to Boundary Bay.

We stopped at the first parking lot, at the head of the shortest path to the beach, a wide, straight stretch between the mud flats on the left and the grassy, scrubby dunes on the right. A flock of sparrows hidden in the dry blackberry canes at the entrance chattered as enthusiastically as if it were mid-summer. A good sign.

Out on the mud flats, Canada geese lined the waterways, mostly asleep.


Closer to the path, a sole yellowlegs (greater or lesser; I can't tell the difference) waded in the shallows. A pair of teal, the first I've seen in some time, splashed around just beyond.



And in a ditch through the dunes, a heron was fishing.


It was enough. I was content.

But -- wait! What do we see next?

On a dead tree, against the light, a small bird perched. An odd shape; that is all I could distinguish at that distance. I took a photo, anyhow, to see if I could blow it up at home and get a better look. And before I could get a second shot, he dropped off the branch and flew into the blackberry canes right at our feet.

A kingfisher. I had never been so close to one.


While we watched, she (I think, because of the hint of rust on the breast) dove into the water, fishing, several times, each time moving to a different cane with her catch.

Easier to see than to photograph; the cameras kept wanting to focus on blackberries and grasses, and she kept moving on. And here, Laurie's camera began to give problems. While he wrestled with it, I scrambled down the bank ahead of the bird, and tried to get into a position where I had a clear view.

Not quite. But here she is, diving. A bullet-shaped bird going down; wings spread coming up. (Do click on that second shot, to see her clearly.)



And then she'd had her fill; she flew off into the bushes, out of sight.

And that was only the opening act. Down at the beach, we had another treat coming.

Great flocks of dunlins were feeding in the shallow bay. They would stand, all together, at ankle depth (to them) poking at the sand for a few minutes, then lift off suddenly, all together, and stream quickly a few dozen meters down the shoreline, land and feed again. (Click on these photos to get the full picture.)


Feeding. One yellowlegs in front. Looking like a conductor with his orchestra, all of them in tidy brown and white. Note the seagull, just a bit beyond, on the right; it gives an idea of the relative size of these little birds.

Farther out, we could see great grey rafts, mostly resting; the more successful hunter-gatherers, perhaps, sleeping it off.

When the dunlins flew, they looked either black against the light, or as they turned, exposing the underside of the wings and bellies, flashing bright white. All at once; the flock was either white or black in its entirety. And the change was instantaneous, like an electric light switching on and off.


Black. One flock flying, another feeding. Beyond, in the deeper water, a group of Canada geese.


White. Flying just a few feet up, so that their brown upper parts are reflected in the water as they turn.

We followed them down the shore, almost until sunset, never getting close; they took it in easy stages down to the point, then turned and flew back again, always just ahead of us. Laurie was berating his camera; it kept sticking, refusing to zoom, refusing to focus. But no matter; it was glorious just to watch the show; the flocks moving as a unit, a flying raft, stretching out into a line, then bunching into a speeding grey cloud just over the water, flashing white again. And then alighting in a great flapping frenzy, to stand quietly in the mirrored bay, as if intending to fall asleep like the geese. Until, as if blown away by a sudden gust of wind, they were off again...

At one point, another viewer came up to us to ask if we'd seen them in the morning. No. He explained that every morning they are there early, in flocks of thousands, wheeling and flashing over the water. One of these days we must go see.

A photographer loaded with equipment, including a large tripod, and wearing big boots for the mud, made his way down to the water's edge; like us, following the flocks. But by the time he had set up, the dunlins were far away. I felt sorry for him; all that persistent work. But as we reached the straight stretch back to the parking lot, I turned for a last glimpse of the birds.

Payoff! The flock was landing at his feet. I watched him for a while, turning his long lens this way and that, surrounded by feeding dunlin.


On the way back to the car, we noticed a bald-headed eagle standing in the water near the geese. Just standing there. Odd.

We drove home in blissful silence, too full for words.
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