Chukar On A Snow-covered Rock Ledge

Sometimes a change of position of just a few inches can have a fairly dramatic affect on the overall “feel” of an image.  That was the case with this Antelope Island Chukar.    1600, f/8, ISO 400, 500 f/4, 1.4 tc, natural light  I found the bird on a rock ledge and slightly above me which gave an almost eye-level perspective that I like.  Occasionally it would call, as they’re very prone to do.       1600, f/8, ISO 400, 500 f/4, 1.4 tc, natural light  But then it began to walk a short distance to my right (I’m always surprised that the bottoms of their feet are yellow)…       1600, f/7.1, ISO 400, 500 f/4, 1.4 tc, natural light  which brought the snow-covered hillside in the background into play.  At first there was a mix of snow and blue sky back there…       2000, f/7.1, ISO 400, 500 f/4, 1.4 tc, natural light but then I deliberately raised my window a couple of inches (as usual I was shooting from my pickup) to take the blue sky out of the picture.  And the bird obliged me by calling once again. Most of the snow is finally gone from the island now.  Even the roads to the Frary Peak trailhead and White Rock Bay are open – they’ve been closed for months due to snow.  Hopefully that’s a sign that the curlews and Willets (and other spring birds) won’t be far behind.  Hope so – it’s been a long dry spell on the island. Ron

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Mucus-drinking Cowbird

Before Europeans came to North America and cleared forests which modified the environment into the agricultural and suburban landscapes of today, the range of the Brown-headed Cowbird was limited to the short-grass plains where they followed the almost endless herds of American Bison as they fed on the insects stirred up by those wandering behemoths.  Early settlers so strongly associated them with bison that they were called “Buffalo Birds”. Today that relationship still exists wherever limited numbers of bison can still be found.  Antelope Island is one of those places. One of the many challenges facing the cowbird was obtaining enough moisture as it followed the bison herds over the hot, rolling plains.  In late summer several years ago I photographed a cowbird behavior that illustrated one of the ways they solved that problem.   I found this huge bull languishing in the broiling sun next to a boulder that it had been using as a scratching post.  A group of Brown-headed Cowbirds were in the vicinity but at first I wasn’t paying much attention to them.   Then this female (at frame bottom) flew in close…     and began flying at the nostrils of the bull.  Initially I was unsure about what she was doing but she did it repeatedly and eventually it became clear that she was…     drinking the mucus-laden secretions from the bison’s nostrils.  She would actually hover in place as she gobbled down the long, stringy strands of mucus. Not a pretty sight and perhaps a bit unsettling to our human sensibilities but what an incredibly adaptive behavior…

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Barn Owls On Unnatural Perches

It’s been a while since I’ve seen any Barn Owls out and about and I’m thinking they won’t be flying again during daytime until at least next winter so I decided  to bid them adieu for the present with one last post for the season. I generally prefer my avian subjects on natural perches but Ingrid Tayler’s affection for birds on man-made perches in the urban landscape is beginning to instill in me a little more flexibility.  Perhaps it isn’t too late for some new tricks from this old dog…     1/2000, f/7.1, ISO 500, 500 f/4, natural light, not baited set up or called in At Farmington Bay WMA there are numerous signs posted directing hunters to where they can hunt and where they cannot and those signs are favorite resting spots for hunting raptors.  When I come across an owl on one of these signs I’ll typically drive on by unless there’s a possibility for take-off shots but I made an exception for this one despite the less than ideal light.      1/2000, f/7.1, ISO 500, 500 f/4, 1.4 tc, natural light, not baited set up or called in Another favorite perch is this kestrel nesting box at the top of a hill.  From this elevated vantage point the birds can hunt visually over a large area without expending the energy required for flight – a significant advantage in the depths of a long, cold winter when calories are at a premium.  This owl looks like it might be wary of me and about to fly, but it isn’t.  It was calmly…

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Black-billed Magpie Iridescence

Black-billed Magpies are loud, flashy and conspicuous black and white birds.  And they’re a challenge to photograph well because of the exposure difficulty – getting detail in the blacks without “blowing out” the whites.  I probably discard a higher proportion of shots of this species than I do any other.  But if you work hard at it (with a little luck thrown into the mix) you can get some pretty spectacular shots that have detail in the blacks and whites and their showy iridescence. The actual plumage of these birds is truly black and white, with no other colors.   But in the right light the feather structure (and other factors) on the tail and wings of these birds bends the light much like a prism and produces a variety of colors, predominantly blues and greens.  When I’m photographing magpies, one of my goals is usually to capture some of that iridescence.    1/4000, f/6.3, ISO 500, 100-400 @ 400mm, natural light Three days ago I found this magpie perched on a snow-covered boulder on Antelope Island.  As you can see the whites are well-exposed but there’s not a lot of detail in the blacks.  This is the type of magpie image that I normally wouldn’t do much with except for purposes such as this post (my high shutter speeds were due to the snow and the fact that I was attempting take-off shots).       1/4000, f/6.3, ISO 500, 100-400 @ 400mm, natural light This is the same bird on the same perch but the image was taken…

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Juvenile Burrowing Owl Parallaxing

Parallax is the effect where the position or direction of an object appears to differ when viewed from different positions.  When an observer moves, the apparent relative motion of several stationary objects against a background gives hints about their relative distance which the brain can interpret to provide absolute depth information. As you can imagine this can be very helpful to birds for flight and for judging prey position.  The movement required comes automatically during flight but it can also be provided while perched by exaggerated movements of the head in all three dimensions.  Tipping the head also provides cues by changing the relative position of the eyes to the object being viewed. Learning to interpret this information takes practice so many juvenile birds do just that, owls in particular. Techs for the following images – most were taken at 1/640 or 1/800, f/9, ISO 400, 500 f/4, 1.4 tc, natural light, not baited, set up or called in.  All images presented in the order they were taken.    Several years ago I spent a lot of time over several weeks photographing a family of Burrowing Owls along the causeway to Antelope Island.  Their burrow was very close to the road and they became almost completely acclimated to traffic so I was able to observe and photograph many interesting behaviors of both juveniles and adults from my pickup. Here, this juvenile is simply ignoring me (for the sake of convenience I’ll refer to this bird as a male though I have no idea what sex it…

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Red-tailed Hawk – Intensity At Take-off

Raptors at take-off typically have a “focused” look about them – they’re all business.  But I thought the intensity of purpose of this Red-tailed Hawk was particularly evident.    1/3200, f/7.1, ISO 500, 500 f/4, 1.4 tc, natural light, not baited, set up or called in Red-tails are “perch-and-wait” hunters so when they take off after prey they already have their eye on it and their focus is seldom diverted as they swoop in for the kill.   This juvenile was hunting voles from an elevated rock perch on Antelope Island several months ago. I’ve had few opportunities with red-tails since all the snow piled up around here.  Hopefully that will soon change… Ron

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Chukars Falling Through The Snow

Two days ago we had great fun with Chukars on Antelope Island.  The afternoon before had been relatively warm, melting the top layer of snow which then froze into a thin crust on top of the snow during the night.  Our timing was perfect as we found a large covey of Chukars flitting between sagebrush and rabbitbrush for cover just as the morning sun was beginning to soften the hard crust. As you view these photos, keep in mind that most of the sequences were shot in bursts of 8 frames per second.  The action was pretty fast.   When these birds were walking, the crust would support their weight but they just couldn’t resist the impulse to run.  And when they did…     the crust, which had only become soft in the last few minutes, would usually give way…     leaving a very surprised bird stuck in the snow.     The bird would then pull out of the snow.  This one almost looks like it’s looking around to see if any of its buddies saw its silly maneuver. Usually they seemed to know that they needed to walk instead of run, which they did for a few steps but then they nearly always tried to run again. It was hilarious to watch and it happened repeatedly.  This was one of those few times that I wish I’d been prepared to shoot video but I think the still shots still give a pretty good sense of what was happening.     Another…

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Birds Dealing With Snow And Cold

Birds use a variety of tactics to deal with the harsh conditions presented by an unusually cold and snowy winter.  Some are more effective than others.  I thought it might be interesting to see a few of them that I’ve been able to photograph in the last several weeks. My usual disclaimer for posts relating to behaviors; many of these images are technically lacking but I think they do illustrate some of the conditions these birds are having to cope with.    1/2500, f/6.3, ISO 640, 500 f/4, 1.4 tc, natural light After a fresh snow, the food source for many small birds is largely hidden and unavailable without some extraordinary measures.  This juvenile White-crowned Sparrow, and others in the flock, were flitting from one snow-covered perch to another in an obvious attempt at knocking the snow off so they could get to the seeds underneath.  Here you can see the snow falling away and immediately afterward the sparrow fed on the uncovered seeds.      1/2500, f/7.1, ISO 500, 500 f/4, 1.4 tc, natural light, not baited, set up or called in When it gets very cold most water sources freeze up completely which makes fish largely inacessable to Bald Eagles so many of them turn to scavenging as their primary food source.  But this species adapted very well  to scavenging eons ago which is one of the reasons Ben Franklin looked in disfavor at the proposal to make the Bald Eagle our national bird.      1/1000, f/5.6, ISO 640, 500 f/4, 1.4 tc, natural light, not baited, set up or…

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It’s Been A Tough Winter For Birds (and it’s getting worse)

Typical winters are hard on birds in northern Utah (and elsewhere).  But when the season is unusually frigid with lots of snow as we’re having this year they struggle even more to survive. All of  these images have been taken since January 2 of this year.   Upland game birds like this Chukar seem to have adapted to extreme conditions fairly well.  This bird was all puffed up and sitting high on a rock to catch the earliest warming rays of the sun as it rose over the nearby Wasatch Mountains.     Another upland game species that can apparently take harsh conditions quite well is the Ring-necked Pheasant (this is a female).  They seem to forage for seeds at the base of plants where the snow isn’t as thick and their food is more readily available.     But many other species have a difficult time and quite a few birds don’t survive until spring.  The waterfowl that winter over here congregate in the few areas of open water where the flowing water is the last to freeze over.  But when it gets very cold, even those small bits of open water freeze.  I’ve seen  ducks and coots frozen into the ice, some of them still alive.  This female Green-winged Teal has just left one of the last unfrozen patches of water and is approaching an area of frost flowers.     This Northern Flicker is using the protection of the underside of the eaves of a building on Antelope Island State Park.   I thought the angled…

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A Vole Makes A Coyote Pay a Price For Its Meal

Yesterday morning I witnessed quite the little drama on Antelope Island.  Two of them, really. This post will attempt to document what I saw.  I lost sharp focus on a couple of these shots and some of the action was far away but I hope the images I include here will give you a feeling for all the excitement that unfolded.   Going north on the ranch road we spotted four coyotes.  Three of them crossed the road and walked slowly west while one of them left the area.  At first I didn’t think they were in hunting mode, rather that they had a destination in mind.     But this one detected a vole under the 6″ deep snow.  From its body language it was obvious that it was able to hear the vole, even through all that snow. I’ve deliberately cropped this image to include the second coyote in the background.  Notice in this shot, and the next two, that the background coyote is intensely watching something in front of and above it (there’s a relatively high mountain in that direction).     Coyote #1 begins a pounce toward the source of the sound.     The next image in the burst.     It lands in the snow but apparently missed the vole.     It stopped to listen again for a few seconds then pounced one more time.     With its nose buried, it pushed through the snow like a snowplow for several feet.  I believe that it was following the scent of the…

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Male Sandhill Crane Dancing For His Lady

Sandhill Cranes are impressive birds, weighing up to about 11 pounds, standing 4′ tall with a wing span of almost 6 1/2′.  And their very loud and penetrating bugling call is something every nature lover should experience. These birds are perennially monogamous with pair bonds formed in the spring when they perform elaborate courtship dances.  These dances, usually performed just after sunrise, are the primary mechanism in pair bond formation. I found this pair of cranes in late April along the Antelope Island causeway.  It was early morning and the birds were sidelit so I didn’t get light in the eyes in some of these shots but I found the behavior (and the sounds) to be fascinating and I think the image quality is sufficient for documentary purposes.  All images presented here are in the order they were taken. Techs for all of these images: f/9, ISO 500, 500 f/4, 1.4 tc, shutter speed ranged from 1/400 to 1/800.   Here the larger male in the back is approaching the female and calling loudly.  That distinctive sound absolutely boomed across the shallow water.     Then he begins to dance as he calls.     He seemed to try to move in front of her as she walked to the left, in order to get her attention.     He repeatedly jumped up into the air with his wings spread.  Here he’s about a foot off the water surface though it’s difficult to tell because you can’t see his feet.     Sometimes the female joins in the dancing but in this case…

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A Couple Of Intereresting Coyote Hunting Techniques

New Year’s morning on Antelope Island was a cloudy, low-light affair.  It turned mostly sunny as we left for home in late morning and on the causeway we passed flocks of birders on their way to the island for their first day of birding in the New Year.  I couldn’t help but notice the irony – us photographers who needed good light didn’t get any and the birders who don’t, did… But despite the low light I was able to photograph two coyote hunting techniques that I thought were interesting.      1/800, f/8, ISO 500,  100-400 @ 150 mm, natural light This coyote was on the edge of a large hill overlooking the frozen shoreline of the Great Salt Lake far below.  I was very close to the animal but it was so intent on scanning the marshy area below for prey that it simply ignored me.  At one point it stood on its hind legs with its front legs on a large, snow-covered boulder to give it an even more elevated view of the hunting grounds down below.  I hoped that it would look back at me but it never did, though I think this pose, with just enough of the muzzle in view to show the direction the coyote was looking, well illustrates the hunting behavior. I was pleasantly surprised with one element of this photo.  I was much too close to this coyote to use my 500mm lens so I had grabbed my other 7D with the 100-400 attached and backed the zoom down to 150mm. …

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