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Wren rocks

When you get out, you see things.

On a recent drive through a favorite stretch of desert mountain backroad, we saw a small thing that I’ve always wanted to see, ever since reading about it.  We saw it.  And I got a picture of it.  It’s this:

wrenrock

A tiny bird in a tiny hole in a big desert-dirt wall above a desert dirt road.   (Photo A.Shock)

That’s a Rock Wren — Salpinctes obsoletus — standing at the entrance to its nest cavity.  It’s not the bird itself that I’ve been hankering to see, because I’ve seen a few Rock Wrens: in the right place and time, they’re largely (or small-ly) unavoidable in craggy arid regions of the western US, Mexico, and Canada.  We even have them in our neighborhood occasionally.  What I was so excited about is the small expanse of rock chips to the left of the bird: the Rock Wren’s very rocks!

It’s not actually a pile, please, it took more effort than that.  It’s a pavement.  A mysterious pavement.  Rock Wrens are known to construct paved areas leading to their nests, and sometimes to lay a foundation of flat stones under the cup nest they construct in a crack, crevice, hollow, split boulder, or other rocky vug. But no one knows why, exactly.

Building this pavement requires a lot of time, energy, and effort.  Each bird of a nesting pair carries stone after stone in its beak from its source to the nest — sometimes as many as two or three hundred, then deliberately sets them in front of its chosen inaccessible and hidden location.  Both males and females have been seen doing this, although some observers report that it’s mostly the females who pave.  The stones are flat, and though they’re small by our human scale, they can weigh up to a third of the bird’s body weight.  Theories about why they go to the trouble lie as thick on the ground as wren-rocks, ranging from pair-bonding to mate-evaluating activities, to nest and nestling thermoregulation, to steep site soil stabilization, to landing pad or sign-post or defensive barrier.  Ornithologists studying an unrelated old-world species, the Blackstart, hypothesized that stone pavements or ramparts built by their subject birds could function as a predator defense system, providing early warning of a predator as it moves rocks aside to get into the hidden part of the nest. (In this case, the study was done in Israel in the Ein Gedi Nature Preserve, and the Blackstart pairs closest to the archæological sites there employed potsherds along with rocks to build their ramparts — how Bronze-Age is that?)

I watched this pair of Rock Wrens for twenty minutes as they fed their nestlings in the deep dark of the niche.  The babies were concealed in shadow, but mom and dad called frequently — Rock Wrens are very vocal — and took turns flying in and out of the small adit, their curved bills full of insects pried from crevices in nearby rock and streamside boulders.

(I should add that it wasn’t necessary to get close the nest site to watch the parents and take photos: this location was in a road-cut about 15 feet above the dirt road at a creek crossing, so I just walked up the road a bit to get an eye-level observation spot away from the nest, and watched quietly with binox and a telephoto lens. I don’t need to remind you how important it is to never agitate nesting birds, or wasps, mountain lions, or your sleepless neighbor with a new baby, right?  It’s rude and at best stressful for everyone, if not potentially harmful.)

Posted by Allison on Apr 18th 2013 | Filed in birds,field trips,natural history,nidification,rox | Comments (1)

Spot the Bird, Shadow edition


spotthebirdlogocopyTime to play Spot the Bird! Here you go: clearly, there’s a bird nearby, large — or rather, small — as life, casting its shadow. Look closely, though, and the dinky girl throwing shade is in the shot, warming her tiny bones in the winter sun, whose heat radiates off of our lovely pink block wall (never mind the awful hue, the quail and foxes who use it as a thoroughfare above the gaping jaws of neighbors’ dogs and the occasional coyote don’t care what color it is).

COHUshadow (female Costa’s Hummingbird perched on a creosote twig, photo A.Shock)

Posted by Allison on Mar 4th 2013 | Filed in birds,hummingbirds,spot the bird,yard list | Comments Off on Spot the Bird, Shadow edition

Spot the Bird

mawrI’ve entered this as the first Spot the Bird of the new year, but, having set it in the text, I can see that it’s not much of a challenge. So I made the image small — like the bird itself.  That might slow you down. (Once you’ve spotted the bird, however, do click on it to enlarge to see it better, I’ve uploaded a largish file.)

It’s a tiny, jauntily barred Marsh Wren, Cistothorus palustris, rummaging around in the winter cattails at the Needle Rock picnic area on the Rio Verde northeast of Phoenix AZ. As usual with these skulky wrens we heard it before we saw it: it was rattling the dry stems and giving its harsh scold note as it foraged. The wren, a Song Sparrow and two Black Phoebes were taking advantage of an abundance of flies, picking them off the surface of the river where they were swarming right before sunset.

spotthebirdlogocopy

How amazing to see a little organism so dependent on water living its entire life in a dense but narrow strip of cattails within 20 yards of an arid, saguaro-studded thornscrub landscape.

(Photo by E Shock, who somehow managed to capture a very small moving target in fading light!)

Posted by Allison on Feb 16th 2013 | Filed in birds,field trips,natural history,spot the bird | Comments (1)

Thankful for thankfulness

Do you suppose these are spicy?

(Ocellated turkey, Meleagris ocellata , photo A.Shock, Chan Chich, Belize)

Posted by Allison on Nov 22nd 2012 | Filed in birds,close in | Comments (2)

Little-known avifauna of the desert southwest

My iPhone4, its OS, and its apps are getting creaky old, but they’ve still got what it takes to manage an image of the rare Three-beaked Raven (Corvus cerberus), turning over stones for whatever reasons ravens do.  Someone alert the Cryptobiologists.  And, Happy Halloween!

Posted by Allison on Nov 1st 2012 | Filed in art/clay,birds,oddities,unnatural history | Comments Off on Little-known avifauna of the desert southwest

It was just sitting there…

…so I walked up to it and took its picture.

It’s an immature Costa’s hummingbird sitting on a thorny throne below the deep dark of our Texas Ebony’s canopy.  Imperfectly sharp as it is, it was a lucky shot in the shade — with no flash, trying to hold the telephoto lens still.  There are thirty other perfectly un-sharp images to prove it.

Costa’s hummingbird (photo A.Shock) >>

It did not care in the least that I was stealing its soul with my camera — probably a soul would just weigh a hummer down anyway, and this one had gnats to nab and intruders to chase.  I was happy to catch it in its late afternoon moment of calm.

Posted by Allison on Oct 15th 2012 | Filed in birds,close in,hummingbirds,natural history,yard list | Comments Off on It was just sitting there…

Just a pretty

Here’s some eye-candy to bring in the new month: a Photoshop-edited photo of the Cooper’s hawk (who may have eaten Hoover) I posted about a few days ago >>

Sometimes what begins as a technically sub-standard photographic capture — like this image taken in difficult light through grimy double-paned glass, a bug screen, and security bars — can be salvaged with a little (or a lot!) of editing.  Don’t think of it as photography at all, because that’s only the starting point.  You can argue either way whether it’s art or not, but it is good illustration, because it clearly shows the tough-guy attitude these fierce smallish hawks emit: “Just keep stuffing down there below the feeders, you lot!  I will eat you, fat happy doves….  now or later, you are mine… and I will eat you.”

Posted by Allison on Oct 1st 2012 | Filed in art/clay,birds,close in,natural history,yard list | Comments Off on Just a pretty

Imagining the shape of a bird

I presented the following essay, written especially for the occasion, at “Sonoran Stories: for the Birds“, a story-telling event held at  of Audubon Arizona’s Nina Mason Pulliam Rio Salado Center, on 23 Sept 2012. It was part of a benefit for Sonoran Desert Heritage‘s efforts to preserve 750,000 acres of desert in Western Maricopa County.  My thanks to Sarah Porter and Doug Bland for giving an unseasoned story-teller a voice in an all pro line-up!  The photos weren’t part of the oral presentation since the audience was called on to conjure up images in their heads; I’ve added them to this website post, since they were the source for many of the descriptive passages. They’ve all appeared previously at threestarowl.com — click on the captions to link to the original posts. (All photos by A.Shock) Translation note: the name “Harfang” is from the French name for Snowy Owl: Harfang des Neiges.

Imagine the Shape of a Bird: vertical napping bark

Everyone has their own bird. And everyone’s bird is different. It might be your favorite bird from childhood.  It could be, as birders say, your “best” bird. Maybe it’s a bird you know well because you lived with it – or an exciting bird you saw only once. It could even be a bird you’ve never seen, one you’d cross an ocean to find.

I’d like to invite everyone here to use your mind’s eye to imagine the shape of that bird.

Is your mind’s eye looking up? Did you see a Cliff swallow, swooping down from its tidy mud nest under a Salt River bridge? Or maybe you saw a Costa’s hummingbird at a chuparosa flower, flaring its purple gorget like a dinky dude twirling his cowboy mustache? Or maybe you waxed poetic and pictured the teetering float of a turkey vulture waiting for the sun-warmed scent of carrion – a redolent roadkill ragout – to rise up to its pervious nostrils?

purple moustache majesty >>

We people like to picture birds in the air. We think of a bird as an airborne creature, aloft and at altitude. To those of us on the ground, birds make flight look easy – so easy that we commonly say that a bird is “at home” in the air.

But really, for many birds, when they’re on the wing they’re at work — whether it’s a day job or a night job, or whether, like a lesser nighthawk, they’re working the crepuscular swing shift. On the wing, birds are commuting, feeding, migrating, patrolling their territory, advertising their presence for the benefit of a potential mate or rival.

So instead of a flying bird – a working bird – I’d like to ask you to imagine a less dynamic, more domestic shape: a bird in the place it roosts, rests, nests, or digests. Imagine a bird at home: an elf owl sunning in a saguaro hole, passing for a patch of brown cactus crust. Or, a pair of Spotted Owls loafing shoulder to shoulder on a sycamore limb, doubled-dappled with sunspots and owl spots.

Spotted owls of Scheelite Canyon>>

That’s my bird – an owl at home: Vertical Napping Bark. An owl at rest is a bird in its most basic shape, not doing much, maybe yawning occasionally, scratching its facial disc, or swiveling its head to glare at a scolding wren or agitated jay, cocking its eye upward to follow a red-tail’s flight overhead.

As a birder, I never tire of seeing that shape in the wild, even if it’s just a quick glimpse, or nothing but a silhouette screened by foliage. As an artist, that shape is something I think about a lot. I need to know how an owl’s shape forms and changes, how an owl organizes itself. A sleepy owl, an indignant owl, a startled owl – each of these owls has a different shape.  Let’s consider a loafing owl now.

silhouette of a Great Horned Owl in fall leaves >>

Since owls are good at not being seen, I’ve brought a ringer, a visual aid to help out. Meet my assistant: Harfang [fake owl unveiled from under black velvet bag]. You might notice Harfang is not a desert species. Nevertheless, he’s a local bird. He’s a plastic Snowy owl purchased from the garden dept of a now defunct big box store on Thomas Road, as a scare-pigeon. But in our yard, he perches on the garden wall for decorative effect, ignored by the lesser goldfinch and lovebirds who come to feed on the sunflowers we grow for them.

It’s not his fault Harfang doesn’t scare the songbirds — what could our desert finches, chatty scraps of dry yellow sunshine – know of a hunter of lemmings on the Arctic tundra? Really, though, it’s not geography that’s the problem. And its not because of the way he looks: Harfang’s designers have given him all the owly characteristics – starting with lots of “good feathery detail”. He’s gifted with a large, domed head that functions as a mobile radar dish, strong taloned feet, and alert, upright posture cloaked with cryptic coloration — in his case perfect for mimicking hummocks of tundra.

<< Harfang lui-même happily not scaring Rosy-faced lovebirds in our sunflowers

These are the marks of owliness, recognized by every cautious bird and small scared mammal.  This fundamentally owly shape is so recognizable that when a real owl wants to disappear it can hide in plain sight by making slight changes in that shape: it might turn sideways, draw itself up like a thinnish branch, and squint to hide its vivid eyes. Then, to perfectly complete its innocent stick impersonation, an owl removes itself from the scene by holding…perfectly…still.

And that’s why Harfang, the heavy-duty plastic K-Mart Owl, owly as he appears, fails to effectively frighten. He’s motionless, and therefore invisible: an abstract branch, a bleached stump. Hunted animals know a stump won’t eat you, and you can sit on a branch. To them, Harfang – like a ball park umpire – is merely part of the field.

So physical presence isn’t the whole story of shape. It doesn’t start at the cranial tufts and end at talons or wingtips. It’s not merely what a bird looks like — it’s bigger than that. Ecologists strive to quantify it; hunters, photographers and artists each in their own way try to capture and display it; storytellers remind us: the whole shape of a bird is how each one fits into the world, an interlocking, integral part of a larger picture, like a puzzle piece, or the fibers of a basket.

>> snake snack

It’s a Gambel’s Quail hen pecking at grass seeds while in her nest nearby, three of her eggs are being swallowed by a young gopher snake – the unwilling process of a quail turning grass into snakes.  It’s also a rural school kid explaining that her grandma always says that when you hear a hoot-owl call, it means someone’s going to die.  It’s a well-worn clay pot in the Heard Museum decorated with burrowing owls and spadefoot toads, meant for holding the fruits of the monsoon harvest.  And it’s the motivation of a group of people working to preserve the Sonoran Desert not just for what it can do for humans, but simply on the desert’s own merit.

So whenever you think of a bird, imagine its whole shape. The shape that’s made up of all of these things: a bird’s body, its biology, its presence on the land as well as the place it holds in human minds and hearts – like ours here today as we illustrate stories of birds with our imaginations, along with the help of one funky plastic owl.

Posted by Allison on Sep 23rd 2012 | Filed in birds,environment/activism/politics,Events,natural history,owls | Comments (1)

Hoover-hoover

It’s ba-ack.

Last January, a Cooper’s hawk snatched our neighborhood feral African Collared Dove, “Hoover” off of the roof of my studio and ate him, then quickly left the vicinity.  It was sad, but we told ourselves at least Hoover’s nutritional content probably fueled the hawk’s migration back to its breeding grounds. Again, we were sad that Hoover was gone, but after all it is what doves are for — turning seeds into hawks.

This afternoon, I caught this adult Cooper’s hawk lurking on a limb of the African Sumac right off the back porch, apparently freshly back to the winter spa of our yard.  If I were given to anthropocentrism, I would say its expression was optimistic.  If I were accipitercentric, I would say it was recalling a fine al fresco lunch it had enjoyed at this establishment last season, and was checking to see if the fall menu had been posted.

<< Cooper’s hawk eyeing the snack bar (photo A.Shock)

Of course, I have absolutely no proof it’s the same bird.  But it’s not impossible. Given this bird’s proximity to the studio where it (allegedly) had had success previously finding a succulent snack, I would even say it’s not unlikely.  Especially since the huge mesquite tree that in the past has been the favorite perch of hunting Coops fell over this monsoon season.  Although part of it is still standing, it’s been reduced to two spindly branches, and offers little shelter for an optimistic snatcher of yard-birds at the feeders, who now might have to employ other vantage points.

So, maybe this is the same Cooper’s that returns to our yard each winter.  I hope so: it warms the pragmatic portion of my heart to think that Hoover’s cells have made it back here for another year, even if in a different, fiercer form.

Posted by Allison on Sep 20th 2012 | Filed in birds,Hoover the Dove,natural history,yard list | Comments (3)

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