juvenile – Page 18 – Feathered Photography

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…

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…

Black-crowned Night Heron On Ice

Black-crowned Night Herons are the most widespread heron in the world, breeding on all continents except Antarctica and Australia. They’re relatively common in northern Utah, although it’s somewhat unusual for me to see them around here during winter. 1/1600, f/8, ISO 500, 500 f/4, 1.4 tc, natural light So two days ago I was surprised to find this juvenile still lurking around the wetlands of the Great Salt Lake. We’re in the middle of an inversion which means it’s very cold (I was shooting in temps of -10 degrees F yesterday morning) so most still water is frozen solid. This bird was standing on ice with a thin layer of snow on top. 1/1600, f/8, ISO 500, 500 f/4, 1.4 tc, natural light Juveniles look very different from adults. Instead of the basic black, white and gray colors of the adults these young birds are brown-streaked ventrally… 1/1250, f/8, ISO 500, 500 f/4, 1.4 tc, natural light and mostly solid brown dorsally. This orange-chrome eye color will turn bright red in the adult. 1/1000, f/8, ISO 500, 500 f/4, 1.4 tc, natural light I didn’t realize it at first but this bird was in hunting mode. There’s a patch of open water just out of frame in front of the heron and the bird is watching it for fish activity. One time it made an incredibly fast move for a fish from this position but it missed. The heron didn’t stand any closer to the open water because the ice is…

Great Horned Owls On The Montana Family Farm

Note: When I first started blogging 19 months ago, I somewhat arbitrarily decided to post my photos at 720 pixels on the long side. It didn’t take me long to change my mind and begin posting significantly larger images for the much better quality that becomes apparent at that larger size. Since that time I’ve pretty much ignored those early posts, until yesterday when Ingrid Taylar brought my attention to this Great Horned Owl post and it reminded me just how small the images are. So, I’ve decided to repost a very few of those very early works, with some additions and changes which will include: larger images – 900 pixels on the long side additional images, in most cases techs included with the photos updated narrative I’m thinking there might be two or three of these reposts over the next several weeks. I hope you’ll bear with me… For many years now there has been at least one pair of nesting Great Horned Owls on the farm where I grew up near Cut Bank, Montana. They were never there when I was a kid but they’ve sure taken to it since. This farm still seems like home to me and I return to it at least once every year for a visit with family and of course to check up on the owls. It’s the perfect place for these birds as it’s isolated, there are many old barns and granaries for the owls to find sanctuary and the area is literally crawling with field mice, voles and the ubiquitous Richardson’s Ground Squirrel…

Poop, Perches and Personal Preferences

Many raptors are “sit and wait” hunters, which means they often hunt from an elevated perch instead of “on the wing” and Red-tailed Hawks are well-known for this practice. An elevated perch provides good views over a large area and no extra energy need be expended in flight while looking for food. Typically these birds will use the same productive perch repeatedly over long periods of time, which presents a challenge to the photographer – poop (hereafter referred to as “whitewash”). Whitewash consists largely of crystalline uric acid (it’s more complicated than that but I’ll try not to stray into a discussion of the functions of the cloaca), which tends to be bright white. That whitewash can create some aesthetic and ethical conflicts between a “natural shot” and an image that has been “Photoshopped” to death, primarily by use of the clone tool. Many photographers routinely clone out whitewash and/or droppings and I’ll admit that I’ve done it before, but for me it’s an ethical dilemma because I much prefer to leave my images as natural as possible since I consider myself to be a “nature photographer”. In fact, right now I’m struggling with a series of Horned Lark images that I really like, but there’s a large, fresh and very conspicuous dropping right in front of the birds foot that most would find distracting. I could clone it out but every time I looked at that image I would know what I’d done. Canon 7D, 1/4000, f/5.6, ISO 640, 500 f/4, natural light, not baited, set up or called in A couple of days…

Northern Harriers Hunting

It’s getting to be what I call “harrier time” here in northern Utah so I thought I’d do a significant post on the species. For me, watching these birds hunt is absolutely mesmerizing and I could do it for hours. And I have – many, many times. But before I get into hunting I’d like to cover some basics on telling the sexes and ages apart. Sexual dimorphism in harriers is exceptional among birds of prey – telling adult males from adult females is easy because their colors are so dramatically different. But because juveniles of either sex strongly resemble adult females, that distinction becomes very tricky and causes a lot of confusion. So, here’s a primer: Adult males – gray above, mostly white below, black wing tips, lemon-yellow eyes Adult females – brown above, buffy with brown streaks below, lemon-yellow eyes (but in my experience, the eyes of adult females tend to be less bright than those of adult males) Juvenile of both sexes – similar to adult female but darker chocolate-brown above and strongly rufous (reddish) below Juvenile male – pale, greenish-yellow eyes Juvenile female – dark, chocolate-brown eyes All sexes and ages have the unique facial disc (ruff) characteristic of harriers. It’s not as prominent as it is in many owls but it can clearly be seen in this image. Its function is the same as it is in owls – to direct sound to the ears. Most hawks hunt almost exclusively by sight but because of their excellent hearing, thanks largely to the facial disc, harriers depend at least…

Juvenile Red-tailed Hawk

For several days early last month I was able to photograph this juvenile Red-tailed Hawk (and occasionally its apparent sibling) while it was “sit and wait” hunting for voles from elevated rocks on Antelope Island. The first six images I’ve presented here were all taken on the same morning. 1/2000, f/7.1, ISO 400, 500 f/4, 1.4 tc, natural light, not baited, set up or called in Many of these shots were taken during or just after take-off and you’ll notice that the bird was flying to my left in all six images taken that morning. That’s due to the “lay of the land” and the fact that the rocks this bird was hunting from were angled on the side of the mountain in such a way that the hawk was always hunting an area to my left. This is one of the few times the bird took off when it wasn’t after prey. 1/3200, f/6.3, ISO 400, 500 f/4, natural light, not baited, set up or called in When the hawk had spotted prey before it took off it never took its eyes off the quarry as it was going in, so I normally wouldn’t get direct eye contact. This bird was very close when it took off – you’ll notice from my techs that I’d removed my tc and the hawk was still quite large in the frame. 1/2000, f/6.3, ISO 500, 500 f/4, 1.4 tc, natural light, not baited, set up or called in It was somewhat problematic when there were rocks directly behind the…

Snow Geese On The Causeway

For the last few days there have been two Snow Geese along the causeway to Antelope Island – an adult and a juvenile. This species nests on the arctic tundra and is in the midst of migration to more hospitable climes for the winter. Parents stay with their young through the first winter and families generally don’t break up until they reach their breeding grounds the following spring. 1/500, f/7.1, ISO 640, 500 f/4, 1.4 tc, natural light When we relocated these two birds yesterday morning (we’d also seen them two days before) the sun had not yet cleared the elevated causeway road so the birds were still in shade. I include this image so adult and juvenile can be compared and so that you can see the dramatic changes that occur when the warm, early morning light advances on the birds. 1/640, f/6.3, ISO 500, 500 f/4, 1.4 tc, natural light Here, the light has just reached the head and neck of the adult. 1/640, f/6.3, ISO 500, 500 f/4, 1.4 tc, natural light A few seconds later it has advanced to the feet but not to the ground. It was interesting to watch the light move down the bird. 1/2000, f/6.3, ISO 500, 500 f/4, 1.4 tc, natural light I didn’t get a lot of action out of either bird – this yawn from the juvenile… 1/1000, f/6.3, ISO 500, 500 f/4, 1.4 tc, natural light and a wing and foot stretch was about the only “excitement”…

The Banded Burrowing Owls Of Antelope Island

Populations of Burrowing Owls in North America are in sharp decline. They are an Endangered Species in Canada where only about 800 pairs remain as there has been a 73% drop in their numbers in that country over the last 30 years. They are a species of “special protection” in Mexico and they are “listed” in 9 of the 18 western states in the U.S. that they still occupy. The reason for this disastrous decline is not well understood, but “human activity” is strongly suspected. In order to get a better handle on what is happening to them, multiple banding studies are in progress and that includes Antelope Island. 1/2000, f/6.3, ISO 500, 500 f/4, 1.4 tc, natural light, shot from pickup window, not baited, set up or called in I first noticed banded juvenile Burrowing Owls on the island this past summer. Out of about a dozen juveniles in one area, several of them were banded but it was difficult to get a precise number because they’re hard to tell apart when some are in their burrows and the rest are flying all over the area. Most of the photos I have of banded owls were taken in early morning light but this one was taken later in the day (as you can tell by the position of the catch light and the angle of the shadows on the eyes), so the light was brighter and harsher. 1/1600, f/6.3, ISO 500, 500 f/4, 1.4 tc, natural light, shot from pickup window, not baited, set up…

Red-tailed Take Off From Farmington Canyon Complex Rocks

I’ve said before how much I prefer the very dark Farmington Canyon Complex rocks on Antelope Island as perches, over the bright white Tintic Quartzite rocks found on the northern part of the island. This juvenile Red-tailed Hawk made my morning last month when it chose just such a rock to hunt from. I always enjoy it when I can get multiple shots of some interesting behavior or action in sequence. To me it’s almost like a very slow motion video and though it may include a few images that aren’t perfect individually I think that collectively the photos gain value as a group for what they illustrate – the whole can be greater than its parts. 1/2500, f/7.1, ISO 400, 500 f/4, 1.4 tc, shot from pickup window, natural light, not baited, set up or called in Photographing take-offs is always a challenge. The bird may just sit there for a half hour or longer but when it happens it’s quick and easy to miss. 1/2500, f/7.1, ISO 400, 500 f/4, 1.4 tc, shot from pickup window, natural light, not baited, set up or called in You also need to be concerned about what direction it will go and if you’re too close (it’s easy to clip wings if you are) or too far away (which shows less detail). Those with zoom lenses have an advantage over me because they can quickly adjust their focal length to whatever they want within their zoom range, while the only option I have is to attach or detach my teleconverter, which is cumbersome and takes time. …

Northern Harrier Basking In The Rising Sun

Just a single image this morning. Normally I can never get close to a harrier perched in a tree but this one made an exception for me. 1/800, f/8, ISO 500, 500 f/4, 1.4 tc, natural light, not baited, set up or called in As I approached this juvenile male (solid rufous breast, light iris) on a cold morning, the rising sun was still behind the mountains so it felt secure in the shade as I positioned my pickup for the best angle I could get. When the sunlight finally hit the bird he was determined to soak in the warmth (rather than fly off) so he spread his tail, fluffed up and posed for me for several minutes. The light was directional but I liked its effect. I’ve added no saturation to the image. Ron

Western Grebes: A Bizarre Behavior Finally Explained

Anyone who has spent a significant amount of time observing Western Grebes (or their close relatives, Clark’s Grebes) has undoubtedly observed this curious behavior multiple times. But before I continue, a few words of explanation are in order. Grebes are unique to most other water birds in two ways that are related to this behavior: 1.) their legs are attached to their bodies at the rear, rather than underneath and 2.) the toes of grebes are lobed instead of webbed. Having legs attached at the rear allows for efficient swimming but causes extreme clumsiness while walking – they rarely venture on to land, but when they do they often fall down after just a few steps. This leg attachment position is so distinctive of grebes that the genus name of four of the North American grebe species is Podiceps (from “podicis” meaning anus or vent and “pes” meaning foot) – in other words, “anus foot”. (and yes, I’m having a hard time resisting a joke line or two with that phrase…) Recent experimental work with grebes has demonstrated that the lobes on the toes function much like the hydrofoil blades of a propeller. Ok, with that background, on to this strange behavioral quirk of the Western Grebe. Without warning, and for no apparent reason, they stick one of their legs out behind them. With those unusual feet it can look pretty silly. Sometimes they’ll do a simultaneous wing stretch, but rarely. Occasionally they’ll hold the foot high in the air for quite a while. That can look even sillier. Even the chicks do it….

Red-tailed Hawk Lift-off

A month ago tomorrow this juvenile Red-tailed Hawk was hunting from the dark Farmington Canyon Complex rocks of Antelope Island. It would use this elevated perch, and others like it, to scan the grasses below for prey. 1/3200, f/6.3, ISO 500, 500 f/4, 1.4 tc, natural light, not baited, set up or called in I could usually tell from its behavior when it had spotted something and was about to take off after it. I always hope for a take-off toward me and angled obliquely to my position instead of “dead-on head-on”. The worst direction is away from me of course and I’ll settle for a fully lateral direction. 1/3200, f/6.3, ISO 500, 500 f/4, 1.4 tc, natural light, not baited, set up or called in Here the bird chose the slightly less than ideal lateral direction. A head turn toward me would have improved the shot but for some reason this hawk was more intent on the prey than it was in pleasing the photographer. But I really liked the dynamic body position at take-off. 1/3200, f/6.3, ISO 500, 500 f/4, 1.4 tc, natural light, not baited, set up or called in Some folks prefer the wings-up position over wings-down but I like them both. 1/3200, f/6.3, ISO 500, 500 f/4, 1.4 tc, natural light, not baited, set up or called in I thought I’d make this final image a vertical composition to show better detail on the hawk, given the flight posture. The last three shots are sequential images in the…

Red-tailed Hawk Banking At Take-off

This morning I’m off on a new adventure, looking for birds (raptors in particular) in a spectacular area I’ve never visited before so I only have time for a short post. In past years I haven’t had great luck with Red-tailed Hawks, even though they’re one of the most common raptors in Utah. They always seemed to be perched on telephone poles, which makes for an unattractive perch and unacceptably high angle. Even at take-off I’d generally only get blue sky backgrounds which I don’t find particularly interesting. But in the last couple of months my fortunes with the species have changed. 1/2500, f 7.1, ISO 500, 500 f/4, natural light, not baited, set up or called in Yesterday morning this juvenile was sitting on an elevated perch and facing away from me, which didn’t give me high hopes for a take-off shot. But it spotted potential prey over its shoulder so when it launched it turned back toward me in the process. I liked the result. The yellows in the background are sunflowers and blooming rabbitbrush. I removed a portion of the unattractive perch in the lower right corner of the frame. Cloning is something I nearly always avoid doing but in this case I made an exception. I mention it in the interest of full disclosure. I’ll make another post soon that will also feature this bird but it will have an interesting “twist” from my usual fare. Ron

Tag: juvenile