Ron Dudley

Horned Larks Blowin’ in the Wind

I have particularly fond memories of Horned Larks from growing up on our northwestern Montana family farm near Cut Bank, Montana. The fallow barley fields and adjacent short grass prairies abounded with them. But since I began photographing birds I’ve had very few opportunities with them here in Utah – until last week when had a grand time with multiple cooperative larks in the foothills of the Stansbury Mountains. And yes, the wind was blowing briskly – a perfect situation to remind me of those Montana larks! Singing in the wind The wind seemed to inspire the males to sing as they all seemed to be singing up a storm on this day, despite the early February date. Blown off the perch While it may look like this male is taking flight, in reality it was being blown off the perch by a sudden gust of wind. If it had been taking off, both wings would be extended. Wind- disheveled feathers In this photo, the wind updraft from the rock perch blew a perfect semicircle of his upper chest feathers into his black neck ring, making him look pretty silly. Very obvious “horns” This photo shows the “horns” (occipital feather tufts) that are characteristic of the species. The horns are found on both sexes but they are much less obvious in the female and rarely erected. This frontal view of the head shows the horns most distinctly when they are raised. Horns laying almost flat At times the horns are laid flat against the…

Bald Eagle Eating a Fish in Mid-air

I’ve often seen Bald Eagles carrying fish but never one actually consuming the meal while flying. Until yesterday, when I got some photos of the behavior. Thanks to Mia for calling my attention to it or I may have missed the whole thing. Eating carp in flight At first I wondered if this eagle was only killing the carp with a lethal bite as I have seen other raptors do in-flight, but then I remembered that it was already dead when it was picked up by the eagle. These fish were killed by refuge personnel (they use rotenone) in order to prevent damage to the wetlands done by these invasive fish. Falling fish scales The four photos in this sequence are in the order that they happened. Here you can see scales and debris falling from the carp as the eagles very sharp bill does its damage. Part of the head, including gill flap (operculum) being torn off I suspect that the reason this eagle chose to consume at least part of its meal in flight has to do with competition. There weren’t many fish available and lots of hungry gulls and eagles to squabble over them. If an eagle tried to eat a fish on the ice (the ponds were mostly frozen) other birds would usually challenge them for the meal. Even gulls were at times very aggressive toward the eagles. On several occasions I observed gulls biting the tails of the eagles while both were in flight. Perhaps this eagle figured it had…

Handedness in Short-eared Owls

Last summer Mia and I spent four days photographing a family of Short-eared Owls in Red Rock Lakes National Wildlife Refuge. There were two baby owls in a nest under a sagebrush guarded over constantly by the female while the male hunted and brought in food. That food in every instance that we saw was a vole (mouse-like rodent). Many of the photos I took were of the male in flight, returning to the area of the nest with a vole in his talons. Male with vole It wasn’t until I returned home and began processing the images that I began to notice that the male always seemed to carry the vole in its left foot. This piqued my curiosity about something I’d never considered – do some birds show “handedness” – the preference of using one limb as opposed to the other? Could this male owl, or perhaps all Short-eared Owls, be left-“handed”? Once again, carrying the vole in the left foot So I decided to do an inventory of my images of these birds to see what would turn up. After culling my photos of these owls from this trip I had 271 photos to go through. Most of those were flight shots of the male and in more than half of them he was carrying a vole. My goal was to try to determine how many “sorties” he made with a vole that I had photographed (I often got multiple shots of the male with the same vole in the same sortie) and determine what percentage of the time he…

The Bald Eagle and the Fish Hook

Last week while looking for Golden Eagles to photograph in the Promontory area at the north end of the Great Salt Lake we came across a group of adult and juvenile Bald Eagles feeding on a sheep carcass. The light angle was bad for photography but we couldn’t resist taking a few shots anyway. Bald Eagle with fish hook in bill We were quite close to one adult and when it flew off I instinctively fired off a few shots, despite the poor light. When I got home and looked carefully at those images I could clearly see this gold fish hook embedded in the base of the eagle’s bill. This bird was apparently feeding normally and I suspect that the hook will not cause it significant problems while it’s in Utah for the winter feeding on carrion. However I am concerned that, because of the position of the hook in front of the eyes, the hook will interfere with effective forward vision for fishing after it heads north in March. I hope it falls out or rusts off before that although I’m not sure if “gold” fish hooks rust at all. An internet search shows that fish hooks are an ongoing problem for both Bald Eagles and Ospreys. Ron

Bald Eagle Serendipity

This is another blog post that will be more about the experience of the photographer than about the quality of the images. My good friend Mia and I spent two days this week looking for eagles – both Bald Eagles and Golden Eagles. We found several of each species but it was a frustrating experience – driving large distances (over 500 miles) and then having bad light, bad luck, bad timing and lots of fog. Then, an unexpected surprise! Bald Eagle waiting for us to get home Immediately after getting home I noticed several neighbors down the street looking up in the direction of the large elm tree in my side yard. I ignored them at first but they persisted in staring so I followed their gaze and couldn’t believe what I saw toward the top of the tree – an adult Bald Eagle! I live in suburban Salt Lake City and have never seen an eagle in my neighborhood in almost 25 years. Of course, both Mia and I got out our photo gear and spent the next hour or so photographing the bird. It was challenging to get good images because of the steep angle and the fact that the eagle was buried in the tree with branches in front and all around. There were a few angles where we could get an almost unobstructed look at the bird but even then the background is very busy and there are shadows on the eagle. Wing stretch The eagle was very relaxed in our presence, even…

Northern Harriers Battle over a Mallard

Occasionally we have brutally cold winters here in northern Utah. It’s my opinion that unusually cold temperatures when combined with thick crusted snow gives harriers little access to their staple food around here – voles. Survival then becomes tenuous for the harriers and they’re forced to move on to other food sources like small birds, dead carp and waterfowl. When a large meal like a carp or duck is available many harriers often fight over the food item and they do so with ferocity. During less stressful times of the year I often see these birds skirmish but then it almost seems like a playful interlude that they do simply for “fun”. Not so when it’s very cold and food is scarce – then it’s deadly serious and incredibly interesting to observe and photograph. First, a disclaimer. Some of the photos I’ll present here would wither under the scrutiny of critique because of cut off or clipped wings, missing eyes or heads, lack of catch lights and difficult and rapidly changing lighting conditions. My intent here is to show the behavior with the best images I have but some of them do have obvious flaws. The calm before the storm I didn’t see harriers make this Mallard kill but it was still fresh when I came across this bird on the duck. At first I though I’d simply be photographing the harrier calmly enjoying its meal but I was very mistaken. Thinking about challenging the larger bird for the meal It didn’t take long for other birds to challenge her for the Mallard. Some were timid…

Bathing Cinnamon Teal/Green-winged Teal hybrid

Though bathing is a common activity for waterfowl it can make for some interesting photographs. I found this bird at Bear River Migratory Bird Refuge at the end of May last year. Cinnamon Teal x Green-winged Teal Hybrid male While I was processing some of the images I noticed the unusual crescent-shaped marking running through the eye to the back of the head that is typical of the Green-winged Teal. I asked several very knowledgeable birders about this bird and they think this is a CT/GWT hybrid, which apparently is quite unusual. Red eye looking at you through a layer of water While bathing he would repeatedly dunk his head and shoulders under water and then lift them up, which would roll water over its back and wings. An interesting process to watch and photograph at such close range. Here he’s looking at me through a layer of water over his head and eye as he brings his head out of the water. Forcing water over the back Here’s the water on the back. Washing the back feathers Then he would shake vigorously which would wash the back and upper wing feathers and send water droplets flying. Rearranging the wing feathers After so much vigorous activity the feathers, particularly those in the wing, needed rearranging to put them in their proper places. Preening after the bath Then came the preening. Lots of it. Here he is grooming individual breast/lower neck feathers. After the bath And here…

Rough-legged Hawk – Defensive Posture

Most birds are defensive of their territories and space and raptors are certainly no exception. Rough-legged Hawks and Northern Harriers both prey heavily on voles (mice-like rodents) so when a new bird of prey comes in to the established hunting territory of another there are often conflicts, with the established bird attempting to drive off the interloper to avoid competition for food resources. Rough-legged Hawk As I was photographing this Rough-legged hawk sitting peacefully in a tree I noted a definite change in its demeanor so I looked around and spotted a Northern Harrier speeding toward the hawk from my right. I anticipated that the harrier would “buzz” the roughie and since I was much too close to get both birds in the frame when it happened I decided to concentrate on the reaction of the hawk as the interaction occurred. I never did get the harrier in the frame in any of the shots. In the image above, the roughie hasn’t yet seen the harrier coming in (nor have I). The incoming Northern Harrier has been spotted When I noticed this posture change in the roughie I knew something was up, so I looked in the direction the bird was focused on and saw the harrier coming in fast. Beginning to react Here the hawk is beginning to react to the swift and aggressive approach of the harrier by beginning to fluff up. Defensive posture This shot was taken when the harrier, traveling very fast, was closest to the hawk – roughly three…

The Northern Shrike and the Good Samaritan

This blog post will be more about the experience I describe than about the shrike images. The Northern Shrike has been a nemesis bird for me for a long time. I have many good images of its southern cousin the Loggerhead Shrike but the northern is an uncommon winter visitor to the northern US and I’ve seldom seen one and never been close enough to the species for good, detailed images – until this week. And I very nearly didn’t get the shots. Northern Shrike This winter there has been a single (as far as I can tell) Northern Shrike wintering at the Great Salt Lake wetlands where I often shoot but I’ve never been able to get close enough to it for a quality shot. Two days ago I was finally able to approach the bird but it wouldn’t have happened without the kind actions of a good Samaritan. As I was driving down the dirt road I could see the shrike flitting from perch to perch in front of me. Several times I almost got close enough but then it would spook again. Finally, just as I got close and trained my big lens on the shrike, wouldn’t you know it – a car came up behind me on the narrow road. If it had passed it surely would have spooked the bird. But it didn’t. The driver could see my lens pointed out the window at the bird and simply stopped on the road, turned his engine off and waited respectfully for over 5 minutes as I photographed the shrike before it…

Pied-billed Grebe Feeding Behaviors

Pied-billed Grebes are fascinating little birds with a chip on their shoulders. They are pugnacious, full of personality and quite small. They don’t seem to get a lot of attention from bird photographers, possibly because of their generally drab colors and because they’re so common. I really enjoy watching and photographing their behaviors. I’ve stated here before that “behavior” is a major focus of this blog and if I have images of interesting behaviors that are less than perfect technically I will still post them if they illustrate the behavior well. There are several in that category in this post. Grebe with young carp Carp are the primary food for these birds in many of the ponds I frequent. Even young fish can make a huge mouthful for these very small grebes. Swallowing a carp I’ve seen it take several minutes for a grebe to finally work one of these huge (for them) fish down their throats. And I’ve yet to see one give up on the meal because it’s too big. A slippery meal Fish are slimy and slippery and sometimes get away from the grebe temporarily, though they always seem to be recaptured. A potential thief in the background These birds are very social so there’s nearly always other grebes close by when one catches a meal and some of them will invariably try to steal the prize from its rightful owner. This can make for some very interesting but challenging encounters for the photographer because the action is usually so…

Short-eared Owl in the Fog

My friend Mia and I had such a great time in June with the Short-eared Owls at Red Rock Lakes National Wildlife Refuge in Montana that we decided to return in September. Getting close to them was more difficult this time because they weren’t nesting and feeding young. However, one morning we got lucky. A cooperative Short-eared Owl When we awoke we were socked in with heavy fog. As it slowly began to clear we went looking for birds and found this owl perched in the middle of the road. As we approached, it flew a short distance to this post and then allowed us to get very close. We’re sure this is the same female that we had photographed in June on the same territory. Short-eared Owl female looking for voles She was very accepting of our presence and within a few minutes was looking for voles below her post perch. We were right at the edge of the fog and as it would swirl around us, alternately getting thicker and then clearing a bit, we knew that some of our images would show the effect of the fog more than others. The soft feathers of owls don’t give up their fine detail to photographers easily, even in the best of conditions. But we simply couldn’t pass up this opportunity with this beautiful female and we still got some shots we like very much. Short-eared Owl checking us out Occasionally her attention would be diverted from the potential prey in the…

Northern Harrier Males – “Grey Ghosts”

The degree of sexual dimorphism (the condition in which males and females of a species are morphologically different) in Northern harriers is exceptional among birds of prey. Many raptors are sexually dimorphic in size (see my “Great Horned Owls on the Farm” post) but Northern Harrier males and females are distinctly different in both size and color. Adult female Northern Harrier This bird is a juvenile female, identified by the mostly solid rufous chest and dark eye. The adult female would look much the same but with a streaked breast and a lighter colored eye. By weight, females are about 50% heavier than males. Both sexes have the distinctive white rump patch that is so difficult to photograph without blowing the whites. Adult male Northern Harrier Adult males are gray above, much lighter below and have black wing tips. And their bright yellow eyes are quite distinctive. Adult male hunting Juvenile birds of both sexes resemble the female in plumage color so relatively few adult males are seen and photographed. For this reason mature males have long been referred to as “Grey Ghosts”. Perched adult male Whether perched or in flight many believe the adult male harrier to be one of the most beautiful raptors. Adult male flying past Phragmites Eye color in the males can vary from orange-yellow to lemon yellow. At times they’re so bright that some folks after seeing my images have thought that I had increased their saturation for effect during image processing. I hadn’t and I don’t. …

Great Horned Owl Fledglings and Juveniles

Great Horned Owls (hereafter referred to as GHO’s in this post) have been resident on the Dudley farm in NW Montana for years and are usually successful in raising one brood of youngsters. Typically they’ll nest in one of the several old granaries available to them. Peekaboo youngster Most of these older granaries have seen their better days since many were constructed in the 1930’s and have had to withstand the fierce Montana wind but the owls love them for both roosting and nesting. Here you can see a very young GHO peering out at me over the back of its sibling. Siblings on granary floor These are the siblings on the granary floor. It has been used only for junk storage for many years so it’s very cluttered but the owls don’t seem to mind in the least. Chicks in tree nest GHO’s will often nest in trees but like other owls and falcons they do not build their own nests, preferring to take over the previously used nests of other species such as Red-tailed Hawks (most commonly), other hawks, crows, ravens and herons. I found this nest next to a major road about 35 miles from the farm. I don’t know what species originally constructed this nest but the spring after these photos were taken the nest was being used by a pair of Swainson’s Hawks. Interspecific recycling in the bird world… Three GHO chicks in a tree This is the same nest as in the previous image. As you can see the…

Black-billed Magpie Nesting Behavior

This past spring and summer I had the opportunity to observe and photograph nesting behaviors of Black-billed Magpies on Antelope Island in northern Utah. Magpies are common in Utah and much of the western US but they’re typically difficult to approach (and very challenging to photograph well because of the contrast of their coal-black and almost pure white plumage) but this pair of birds was so intent on their nest-building activities that they virtually ignored my presence. Mated pair of Black-billed Magpies Magpies are monogamous and typically mate for life. This is a mated pair on top of their domed nest in a sagebrush. The male is on the left, the female on the right – males are about 20% larger than females so they are sexually dimorphic. As you can see from the muddy bill of the female they’ve been actively building the mud-bowl found inside the nest. Typically the male provides the heavier branches and sticks for the nest and the female delivers most of the mud for the mud bowl, which probably explains why the female’s bill is so muddy while the male’s is not. Obtaining mud for then nest The mud for the bowl of the nest was obtained wherever the birds could find it. When we’d had dry weather they would have to fly quite a distance to get any but after a recent rain they would often get it very close by. This bird has just scooped up a bill-full. When it’s available they’ll sometimes use fresh cattle or bison dung in place…

The Challenges of Photographing Birds in Flight in Low Light

Photographing birds in flight in relatively low light (dusk, dawn, cloudy conditions etc) isn’t easy. In addition to the expected challenge of locking focus onto a fast and often erratically moving target, in low light you have the problem of getting enough shutter speed to get a moving subject sharp. A potential solution to the problem is “opening up” – increasing the size of the aperture, which is the same as reducing the f-number – say as in changing your setting from f/7.1 to f/5.6. This lets more light into the camera in the same amount of time, allowing for an increase in shutter speed to freeze the motion of the bird. Opening up however has another effect – reducing depth of field, so less of your subject is likely to be tack sharp. Another potential solution is to increase ISO. Increasing ISO in digital cameras has the effect of seeming to increase the sensitivity of the camera’s sensor to light so that faster shutter speeds can be used but the downside to increasing ISO is that it can increase digital noise in the image. Sometimes in bird photography fantastic opportunities with birds in flight present themselves in less than ideal light. Your best chance at an acceptable image under those conditions is to understand the interplay between your camera settings – how changing aperture affects shutter speed and depth of field and how changing ISO affects shutter speed and the production of digital noise. Male Northern Harrier, 1/1250 @ f/11, ISO 800 It’s not often I get a…

Author: Ron Dudley