Northern Harrier Showing Food Source Adaptability

Last winter Northern Harriers really struggled to survive here in northern Utah. For several months it was bitter cold with a thick layer of snow on the ground which made it close to impossible for our wintering raptors (including Barn Owls) to find and catch their typical prey – voles. So harriers were forced to look for other food sources, including small birds. Songbirds are relatively scarce here that time of year but this harrier got lucky.

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Perched Barn Owls With A Snowy Background

Most of the images of Barn Owls I post show them in flight but I also enjoy the different perspective one can get while they’re perched. Each of these shots was taken ten months ago when the January snows were deep and persistent in the background of nearly all my images.

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Snow-hoppin’ Chukar

Chukars typically forage in small flocks and when they do one of them often sits on an elevated perch and serves as a sentry while the others are looking for food.    1/2500, f/8, ISO 500, 100-400 @ 400mm, natural light  This bird chose a pile of snow that had been pushed up high by a snow plow along the edge of a road.      1/3200, f/8, ISO 500, 100-400 @ 400mm, natural light When the rest of the flock wandered off it decided it was time to look for a safe way down from its lofty perch.    1/2500, f/8, ISO 500, 100-400 @ 400mm, natural light  When they do so they’re very deliberate about it.  This bird investigated several pathways down before settling on this direction.  It’s quite a ways down so “he” was pretty careful about it.      1/2500, f/8, ISO 500, 100-400 @ 400mm, natural light Most birds would at least open their wings to soften the landing.  Not Chukars.  I’ve often been impressed by how far they’re willing to free-fall without using their wings.  I sometimes refer to Chukars as “rock-hoppers” – guess I’ll have to add “snow-hoppers” to the list. Since I was using my 100-400mm zoom lens for this sequence I wish I’d had time to back off a bit on the focal length for the jump, but I didn’t.  Consequently I had to add some canvas for composition.  It’s harder to get them in mid-air, sharp and composed well than it looks. 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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Short-eared Owl In A Snowy Setting

I’ve had very few good opportunities with Short-eared Owls in winter but yesterday morning along the causeway to Antelope Island my luck changed a bit for the better.   It was overcast but there was almost 6″ of fresh snow on the ground which helped slightly by reflecting some of the available light onto the bird. The setting in these three images is “high key” (light color tones with little contrast) because of all the snow.  The  background is the snow-covered lakebed of the Great Salt Lake.  High key images don’t appeal to everyone.    1/2000, f/5.6, ISO 640, 500 f/4, 1.4 tc, natural light, not baited, set up or called in Northern Harriers and Rough-legged Hawks often hunt the causeway so when I first came across this owl my camera settings were already set for possible flight shots.  I snapped off a few images at those settings before I made adjustments.  I wasn’t particularly happy with the vegetation in front of the bird…       1/500, f/8, ISO 500, 500 f/4, 1.4 tc, natural light, not baited, set up or called in but it soon flew a few hundred feet west along the causeway and perched on a rabbitbrush that gave a slightly better view of the owl.  For this shot I had maneuvered my position to get some very out of focus vegetation in the mid-background to provide at least a little bit of color back there but the difference is only slight.      1/500, f/8, ISO 500, 500 f/4, 1.4 tc, natural light, not baited, set up…

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Barn Owl Hunting Adaptations And Techniques

One more Barn Owl post and then I’ll give them a rest for a while. Lately I’ve spent a lot of time watching these birds hunt and I’ve become intrigued by the process and their adaptations for doing so.  Hunting over deep snow presents unique challenges because their prey (typically voles) spends most of their time in tunnels under the surface, so the owls are often hunting by sound alone.  According to Birds of North America Online (out of Cornell) Barn Owls hunt prey by sound more effectively than any other animal ever tested (I’m unsure if this statement takes into account the use of sonar by cetaceans and ultrasonic sounds by bats but BNA seldom gets things like this wrong).    1/3200, f/7.1, ISO 500, 500 f/4, 1.4 tc, natural light, not baited, set up or called in They fly low and slow over the surface while watching and listening but with this much snow they usually locate the voles only by sound.   Notice that they can tuck their legs up into their ventral feathers so far that only the feet are visible.  It’s amazing that they can do so because…      1/3200, f/7.1, ISO 500, 500 f/4, 1.4 tc, natural light, not baited, set up or called in as you can see in this “butt shot” those legs are incredibly long.  This is an adaptation for grasping prey through deep vegetation or snow.  Their claws (nails) are unusually long and sharp and the middle nail has a pectinate inner edge, most likely an adaptation for grasping prey…

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Ring-necked Pheasants Struggling In Deep Snow

Native to Asia, the Ring-necked Pheasant is one of the most successful introduced bird species in North America.  They are exceptionally prized by hunters and may be the most studied game bird in the world. In Utah, as in much of their adopted range, their numbers are declining due to modern farming technologies and practices which are responsible for degradation of their preferred habitat (small farms with diversified crops and many patches of idle habitat). Collisions with vehicles are a major cause of pheasant mortality.  In a Nebraska study, 7,195 (known) pheasants were killed by vehicles in a 439 mile section of Interstate 80 in 7 years.  (I once hit a beautiful male pheasant while driving a very large U-haul truck at 65 mph.  It glanced off the windshield, which definitely got my attention, then wedged in the side-mirror, which it broke.  I  expected to be charged for the mirror but the U-haul folks were fly fishermen and were so delighted to get the tail feathers for tying flies that they let me off with no charge). During winters with heavy snowfall and severe cold these birds require dense winter cover such as cattails in wetlands, which is part of the reason they do well at Farmington Bay WMA where these photos were taken recently. Because of the snow and bright sunshine my camera techs were all over the map and pretty meaningless so I’m not including them this time.   These heavy-bodied birds are somewhat reluctant to fly so deep powdery snow presents some problems for them.  Typically they push their bodies through…

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A Compositional Conundrum

I intended this post to be a single image for my “Just A Shot That I Like” feature.  It didn’t turn out that way. Six days ago I found this Great Blue Heron on the edge of a small, partially frozen creek with an almost vertical snow bank directly behind and very close to the bird.  The heron was patient with me and I was close so I tried a variety of compositions using my 500 mm and 100-400 mm lenses.  The incredibly fast shutter speeds were because of the bright snow and my forgetfulness in adjusting settings as I was juggling two cameras and lenses. In the end I couldn’t decide which composition I preferred so I’m presenting three of them here.      1/5000, f/6.3, ISO 500, 500 f/4, natural light  This relatively tight vertical shows good detail on the bird and I like the close view of the swirly marks on the snow behind the heron made by a wing as it landed.       1/3200, f/7.1, ISO 500, 100 – 400 @ 400mm, natural light Some folks gravitate toward whole-bird reflections so I’m also including this composition.  Ideally I’d prefer the bird to be slightly further left in the frame but cropping off the left makes the image too narrow vertically for my tastes and I have no more room on the right (image was taken vertically and is close to full frame).     1/6400, f/5.6, ISO 640, 100 – 400 @ 400mm, natural light A horizontal composition with the heron slightly smaller in the frame shows more of the…

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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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Barn Owls In Flight

This is the time I’ve both looked forward to, and dreaded – when Barn Owls hunt during daytime. Normally this species is strictly nocturnal so they fly only during times that photography is virtually impossible.  But around here, when it turns very cold and the snow is deep, they must continue to hunt during the day in order to survive.  It’s my guess that there are two reasons for the change in behavior; the cold increases their demand for body heat and the food to supply it, combined with the difficulty of hunting voles when the snow is so deep. The last time these birds hunted regularly during daytime was several years ago when we had a similar frigid winter.  Many of those birds didn’t survive until spring.    1/2000, f/6.3, ISO 500, 500 f/4, 1.4 tc, natural light, not baited, set up or called in Yesterday there were several Barn Owls hunting in mid-day soon after our latest storm began to clear out which finally allowed for some good light.  It was brutally cold with perhaps a foot of fresh snow on the ground, on top of the snow from previous storms.  Notice the ice/snow clumped on the feet of the owl.      1/3200, f/7.1, ISO 500, 500 f/4, 1.4 tc, natural light, not baited, set up or called in I’ve mentioned before how difficult it can be to get a catch light in this species because of their deeply set eyes.  I didn’t get any light in the eye in this image but I liked the wing…

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Western Meadowlarks In Snow

Yesterday was a glorious day on the island with about 6″ of fresh snow and wonderful light.  It was simply delightful.  The Western Meadowlarks seemed to be a little “stickier” than usual, perhaps because of all the snow.    1/3200, f/6.3, ISO 500, 500 f/4, 1.4 tc, natural light  This one was half buried in the snow but I liked all the convolutions in the snowy setting.      1/3200, f/8, ISO 500, 500 f/4, 1.4 tc, natural light  This meadowlark was the most cooperative bird of the morning as it posed for me for over 6 minutes on top of some rabbitbrush.      1/2500, f/8, ISO 500, 500 f/4, 1.4 tc, natural light  It never did turn around to show that bright yellow breast but it did give me some nice head turns to make up for it.      1/2000, f/7.1, ISO 500, 500 f/4, 1.4 tc, natural light Meadowlarks are well-known for a behavior called “tail flashing”, something they often do during territorial disputes.  During tail flashing the tail is nervously (and very quickly) snapped open and closed, better revealing the white outer tail feathers.  The bird was cooperating so well that I made it my goal to try to catch the tail spread to show those white feathers, which turned out to be much easier said than done.  It happens so quickly that you just have to fire a burst and hope for the best.  I took 208 shots of this bird (at least half of them were attempts to get the open tail) and only got…

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Great Blue Herons On Snow and Ice

Christmas Morning at Bear River Migratory Bird Refuge was nothing short of spectacular.  We had great light,  wonderfully clear blue skies and lots of birds.  And it was cold – as low as 6 degrees F.  Perfect! On this trip (which included the Promontory Point area) we saw a plethora of raptors – Bald and Golden Eagles, Red-tailed Hawks, Rough-legged Hawks, American Kestrels, Short-eared Owls, a Prairie Falcon and one Barn Owl hunting in daylight because of the cold.   And I’ve never seen as many Great Blue Herons in one relatively small area as I did on that morning.  Just before I stopped to take this photo there were over 100 of them on the ice of the canal to the right and along the far bank in less than 1/3 mile – which led to a topic of conversation.  Mia is from Florida and we discussed how seeing Great Blue Herons on snow and ice seems incongruous to many folks from warmer climates.  That conversation was the inspiration for this post.     1/4000, f/6.3, ISO 400, 500 f/4, natural light  As is typical for western herons, these birds were difficult to approach (in some areas like Florida one can almost walk up and touch them at times).  This juvenile was fishing in a patch of flowing water surrounded by ice and snow.      1/2500, f/6.3, ISO 400, 500 f/4, natural light Then the same bird flew off and then came back to land within a few feet of where it had been fishing – almost like it was…

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Barn Owl Hunting Low In The Phrags

Usually when I’m photographing hunting Barn Owls they’re flying above the stands of Phragmites so I typically get a sky background.  If I’m lucky they’ll be low enough so that I include some of the phrags at the bottom of the frame to include habitat in the image.    1/1600, f/8, ISO 400, 500 f/4, 1.4 tc, natural light, not baited, set up or called in But occasionally the bird will drop down low enough so that I get only phrags in the background and no sky.  For the sake of variety I like the effect, though it sure makes it difficult to keep focus locked on the bird with the vegetation in the background so close to the owl.      1/2000, f/8, ISO 400, 500 f/4, 1.4 tc, natural light, not baited, set up or called in  On the very next pass the owl was high enough that I got some sky in the background, along with the frosty Phragmites plumes.      1/2000, f/8, ISO 400, 500 f/4, 1.4 tc, natural light, not baited, set up or called in Two shots in the burst later the owl was slightly past me and beginning to turn away but this angle gave me a strong catch light in the eye and a somewhat dramatic look at the fully extended left wing. It’s fascinating to watch these birds in the air.  Their buoyant flight with deep, slow wingbeats as they cruise rather slowly will change dramatically when they twist and turn at the beginning of a dive for prey. These owls…

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American Kestrels In Snow, Frost And Fog

Photographing American Kestrels near the Great Salt Lake during the coldest parts of winter is a two-edged sword.  On the one hand the frigid temperatures in December and January make the kestrels “stickier” – much less likely to fly off before you can get close enough for quality photos.  But there’s a down side too.  Moisture from the lake often forms fog or at least makes the air so incredibly laden with moisture that good lighting often becomes an issue.  I’ll still take the shot under some of those conditions though – a close-up with the bird large enough to very nearly fill the frame is still usually much more desirable than a well-lit bird so small in the frame that little detail can be seen.   2000, f/7.1, ISO 400, 500 f/4, 1.4 tc In this image the background is snow and there had been a blizzard the day before which had stacked snow up on one side of the perch.  This was one of the first times I’d ever been close enough to a kestrel to get a frame-filling image and I well remember having a case of “buck fever” while photographing him at such close range.  Also a bit unusual was the fact that I was actually looking slightly down at him – something that doesn’t happen often with kestrels.       1600, f/7.1, ISO 500, 500 f/4, 1.4 tc This shot illustrates well what you get when the atmosphere is so laden with moisture when it’s very cold – fog, low but even light, some reduction in detail and sometimes…

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