Western Grebe Fish Delivery
Temperatures are finally warming a bit here in northern Utah but the world is outside is still monotonously white. Yesterday morning I measured 22 1/2″ of snow on the north end of Antelope Island, indicating that our bleak and largely featureless landscape will remain the same for the foreseeable future. So this morning I needed a break and decided to post an image (taken this past June at Bear River MBR) that would remind me that spring is somewhere out there on the distant horizon. 1/3200, f/7.1, ISO 640, 500 f/4, 1.4 tc, natural light Western Grebes are devoted parents to their incessantly hungry and noisy chicks. The male and female take turns with their parental duties – one will back brood the youngsters while the other delivers fish and then they alternate responsibilities. Here the female (smaller than the male, with a shorter, thinner bill – thus sexual dimorphism) has caught a small fish and is delivering it to the male. Usually the parent receiving the fish will give it to the chick, as happened here. As I’m sure is obvious, I’m very much looking forward to watching and photographing springtime bird activities once again. It’s going to be a very long 2-3 months… Ron
A Tale OF A Barn Owl Tail
I learned something this morning. It will likely seem inconsequential to others but it was sort of a big deal for me. 1/3200, f/6.3, ISO 500, 500 f/4, natural light, not baited, set up or called in A few minutes ago, while processing this recent Barn Owl image, I was once again struck by how short and stubby the square tail of this species is, especially when compared to the length of the wings. And then some faint memory from long ago popped into my head. Bingo! Now it all made sense. 1/320, f/7.1, ISO 500, 500 f/4, 1.4 tc, natural light, not baited, set up or called in By coincidence, exactly 5 years ago today I posted this image to an online nature photography critique forum (Nature Photographers Network or NPN). At the time I was just becoming serious about my bird photography and I took the critiques I got on that forum to heart – trying to learn from my mistakes and improve my skills. In the version of the photo I submitted to NPN I didn’t recognize the “structure” marked with the red arrow as being part of the bird so I had cropped the image in such a manner that I “clipped” the tip of that structure. The critiques I got from the members of the forum “dinged” me for it, and rightfully so. They all said that I had clipped the tail and in my inexperience I assumed they were right and went on with my life. But I felt pretty silly…
Why The Killdeer Doesn’t “Perch”
More than half of all bird species (5000+) are classified in order Passeriformes and referred to as passerines. Passerines, sometimes known as perching birds or less accurately as songbirds, have four toes – three of them directed forward and one toe directed back. This arrangement allows for stable perching on structures such as small branches and herbaceous stems because the hind toe is opposable to the others (much like our thumbs are opposable to our fingers) which allows “grasping”. Interestingly, the tendon/bone anatomy of a passerine causes automatic closing of the foot (grasping) when the leg bends – such as when it lands on a typical perch. This arrangement also allows passerines to sleep on a perch without falling off. Here you can see the typical “three toe forward, one toe back” arrangement on this Savannah Sparrow that allows passerines to grasp narrow perches like branches or wires and remain stable on them. Animals without something like this toe arrangement would be “walking a tightrope” but these birds have no problem with it. Maintaining stability on a perch such as this would be virtually impossible without the ability to grasp, particularly in a breeze (this is a Loggerhead Shrike). This shot of a juvenile White-crowned Sparrow gives us a better look at all four toes. One more look at the opposable rear toe, this time on a Western Meadowlark. Ok, now to my point. Many birds that do not typically “perch” (with exceptions) are waterfowl and shorebirds. The Killdeer is a plover but because of the habitats…
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…
Nothing Wrong With A Butt Shot Now And Again…
This isn’t the sharpest image in my portfolio but it does intrigue me. A lot. Six days ago this Barn Owl made an unsuccessful plunge into the deep snow for a vole and soon after took off almost directly away from me. This is one of the images I got as it lifted off in the direction of its favorite hill-top perch – a “butt shot” to be sure but I’m fascinated by the wing angle and position. 1/3200, f/7.1, ISO 500, 500 f/4, 1.4 tc, natural light, not baited, set up or called in This shot caught the wings toward the end of the upstroke. The primary feathers at the end of the wings are in what appears to be an almost perfectly vertical position to allow for very little air resistance as they move to a higher position in preparation for the powered downstroke but the secondary feathers are pointed almost directly back at me. The skeletal structure of a bird’s wing is homologous (similar in position, structure, and evolutionary origin but not necessarily in function) to the forelimb of most other vertebrates (including humans) with a humerus, then radius and ulna, then metacarpals and finally phalanges at the end. Like humans, the joint between the radius/ulna and the metacarpals is the carpal or “wrist” joint (see here if you’re curious and/or confused by the anatomy). So the “wrist” is the joint between the primary and secondary wing feathers. Our wrist or carpal joint can be “bent” up or down and left or right but it cannot be rotated (try holding your…
A Guide To Aging Bald Eagles
As we go into prime “eagle watching” season here in northern Utah I thought it might be timely to present a guide that would be helpful in aging Bald Eagles as they progress through the 5-6 year process of becoming adults. Many of these younger birds are mistakenly identified as Golden Eagles by the general public. Eagles that have not reached the adult stage are referred to as immature, juveniles or sub-adults. Plumage stages are highly variable, depending on molt sequence, age and timing so other factors like iris and beak color are also taken into account when estimating age. Eyes gradually change from dark brown to yellow while the beak goes from blackish-gray to yellow. 1/4000, f/8, ISO 500, 500 f/4, not baited, set up or called in The adult Bald Eagle is unmistakable with its distinctive bright white head and tail contrasting with the dark brown body and wings. 1/200, f/6.3, ISO 800, 500 f/4, 1.4 tc, not baited, set up or called in But juveniles present very differently than adults, especially in the early stages of development. This very young bird is barely fledged and was still hanging around its nest in sw Montana. Notice that the plumage is dark brown throughout, though they may have some white or pale mottling at this stage – especially on the underparts. Both eye and beak are very dark. 1/2000, f/6.3, ISO 500, 500 f/4, 1.4 tc, not baited, set up or called in This is a first year bird during winter. 1/800, f/8, ISO 500, 500 f/4, natural light,…
Harlan’s Hawk On A Coot Kill (graphic)
On January 18 I photographed this Harlan’s Hawk at Farmington Bay WMA. Harlan’s is a relatively rare and very dark subspecies of the Red-tailed Hawk that breeds in Alaska and northern Canada but winters in the western U.S. and the Great Plains. I posted two other shots of this bird on January 20. 1/3200, f/7.1, ISO 400, 500 f/4, 1.4 tc, natural light, not baited, set up or called in On this day I only had a few moments with the hawk before it took off. 1/2500, f/8, ISO 500, 500 f/4, natural light, not baited, set up or called in Then, on January 22, we located the bird once again within just a few yards of where it had been four days earlier. This time it was at the bottom of a creek gully feeding on a freshly killed American Coot. The angle was steep and it’s not the most attractive setting but the behavior was interesting so I took lots of photos of this juvenile, if for no other reason than documentation of an unusual bird enjoying a meal. 1/2500, f/8, ISO 500, 500 f/4, natural light, not baited, set up or called in The bird was only nervous with our presence for a few moments, then resumed eating its meal with enthusiasm. Here it has a beak-full of feathers that it had a difficult time shaking off. 1/2000, f/7.1, ISO 500, 500 f/4, natural light, not baited, set up or called in I spent over 5 minutes with this…
Mallard Reflection
“Reflecting” my need to work with an image with some color for a change (after all of the snow, brutal cold and gray skies we’ve been having) and also inspired by some recent discussion with blog reader Sue Johnson regarding reflections, I’ve chosen to post something this morning that’s a little different for me. Last July I found this wild female Mallard posing and preening on a perch I liked and in warm, early morning light. 1/320, f/6.3, ISO 500, 500 f/4, 1.4 tc, natural light As I gained experience as a photographer I found myself gravitating away from reflections, often preferring instead the fine detail typically available in traditional portraits. But for my tastes, this image provides both – good detail and a strong reflection. I like the setting, pose, perch, light and reflection. In fact I like the reflection (bird and water colors) at least as much as I do the live bird. The image may be a little tight for some but it’s very close to full frame, shot vertically, and I just didn’t have as much wiggle room as I would have liked. I thought I’d present the image for your consideration anyway… Ron
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…
Barn Owl Hunting Over A Hoarfrosted Hill
The Barn Owls are still hunting sporadically during daylight in northern Utah. I’ve seen them doing so in a variety of areas and heard reports of it happening elsewhere. Some areas near the Great Salt Lake are literally “magical wonderlands” in the early mornings due to the thick layer of hoarfrost that covers nearly everything. The frost falls off the vegetation during the day, then reforms during the night. The hoarfrost produces a setting for my images that appeals to me. The camera settings for the images in this post were: 1/3200, f/7.1, ISO 500, 500 f/4. The owl was not baited, set up or called in. Yesterday morning this owl was hunting along the upper edge of a steep-sided hill as it came in my general direction and then rounded the hill to my right. In the first four shots you can see that its attention is riveted to the side of the hill where the snow cover is much less deep than it is everywhere else, which would increase the chances of spotting a vole. I chose to compose these images a little differently so that the frost-covered hunting ground becomes almost as important to the image as the bird. If you have any thoughts on this composition I’d be interested in hearing them. As the bird rounded the hilltop and got closer to me the frosted vegetation became more dominant in the images. You can see that the snow on the hillside is patchy (most of the white is frost) so I believe that…