Tag: antelope island

Short-eared Owls Defending Their Nest Against Predators

Recent reports from others indicate that bird activity on Antelope Island is slowing down now and our experience out there recently would agree with that assessment so yesterday when Mia and I were trying to decide where to go shooting birds we were a little hesitant about another trip to the island.  But even with things slowing down we almost never fail to find something interesting to photograph and yesterday was certainly no exception!   Canon 7D, 1/800, f/7.1, ISO 500, EV 0, 500 f/4, 1.4 tc Soon after arriving on the island we noticed a pair of Short-eared Owls, obviously mated based on their behavior.     Canon 7D, 1/1000, f/7.1, ISO 500, EV 0, 500 f/4, 1.4 tc This owl was carrying a vole and we immediately suspected that the pair had a nest in the vicinity, which turned out to be true.  It was quite a distance from the road and buried in vegetation but we could tell its location by watching this owl deliver food to the nest site – either to the mate or to both the mate and chicks.  We watched and photographed the birds for a while but when things slowed down we went further down the island.     Canon 7D, 1/1600, f/8, ISO 640, EV + .67, 500 f/4, 1.4 tc On our return to the area of the nest we immediately saw a quickly developing drama.  A young coyote had apparently just crossed the road and was approaching the nest area and the owls were in…

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Long-billed Curlews and “Bugs” of Antelope Island

Two days ago we were just about to go home after several photographically unproductive hours on Antelope Island because of a lack of cooperative subjects combined with a “cloud from hell” that hung over the island and ruined our light all morning when I spotted two Long-billed Curlews far below us.   The area was accessible to our vehicle so we decided to investigate.  Both Mia and I are very glad we did!   Canon 7D, 1/3200, f/7.1, ISO 500, 500 f/4, 1.4 tc One of the two birds was this adult, perched attentively on this almost white Tintic Quartzite boulder.   The curlew was very tolerant of us and let us get close and even allowed me to maneuver my pickup for a variety of backgrounds.      Canon 7D, 1/2500, f/7.1, ISO 400, 500 f/4, 1.4 tc This adult was very relaxed in our presence and eventually settled into grooming and preening as it’s doing here.       Canon 7D, 1/2500, f/7.1, ISO 400, 500 f/4, 1.4 tc It turns out that the second bird I had spotted from up above was this juvenile in the tall grasses and the adult had obviously chosen a relatively high perch in order to keep an eye on the youngster (a behavior we’ve seen multiple times in adults with chicks or young juveniles).        Canon 7D, 1/1600, f/7.1, ISO 400, 500 f/4, 1.4 tc We spent quite some time with these two birds – the parent on the boulder and the juvenile foraging in the grasses.  Occasionally the adult would fly off for a few…

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Chukar with Black Mustard

I know, my title sounds like a recipe title or an entree from a fancy restaurant.  Couldn’t resist… I’ve been photographing Chukars on Antelope Island for several years now and I’m often pleasantly surprised by the lovely backgrounds the island provides.  Since these birds like to perch on the boulders that are common on the island they are often separated from their backgrounds by enough distance to provide a pleasing out of focus backdrop of earth tones from the dried grasses.   Canon 7D, 1/1250, f/6.3, ISO 640, 500 f/4 But until recently the background has never included attractive flowers that I recall.  What a treat it was to find this bird immediately after we got on the island just as the sun was peeking over the mountains to the east which made for some some nice warm light and for the bird to choose a perch with such a pleasant background.  In this case the flowers are Black Mustard (named for the seed color – not the color of the flower, obviously – thanks for the flower ID Mia!).   I liked the calling pose in this full frame shot.     Canon 7D, 1/1000, f/7.1, ISO 640, 500 f/4 And to make things even better this bird cooperated for quite a while – providing a variety of head turns and poses to take advantage of the light and the setting. Chukars like to perch on, and call from, boulders.  That can be a problem because most of the rocks on the north end of the island where these…

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Antelope Island Potpourri

My last few visits to Antelope Island have yielded a mixed bag of bird and mammal photos that I enjoy so I thought I’d share a little of what it’s like to experience the wildlife out there during late spring.    Canon 7D, 1/2000, f/6.3, ISO 500, 500 f/4, 1.4 tc This take-off pose is one I’ve been after for some time so I was glad to get it from this Loggerhead Shrike, despite the foreground twig in front of the right wing-tip.        Canon 7D, 1/2500, f/6.3, ISO 500, 500 f/4, 1.4 tc I believe this to be the same bird as in the previous photo.   It had captured what I think was one of the Ichneumon wasps and toyed with it a while before dropping it.  I was happy to get the wasp unobscured by the branches or the birds toes as it fell.  The shrike watched where it fell and retrieved it.      Canon 7D, 1/2000, f/6.3, ISO 640, 500 f/4, 1.4 tc There are presumably many pronghorn fawns on the island this time of year but I’ve found it difficult to get close to them or even to spot them at a distance – probably partially due to their instinctive behavior of lying low in the tall grasses much of the time.  This one was in a playful mood and spent several minutes romping through the grass around its mother.      Canon 7D, 1/2500, f/6.3, ISO 640, 500 f/4, 1.4 tc This is the same fawn a few minutes later, just after nursing. …

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A Willet Expelling a Pellet

Yesterday I got a shot of a Willet expelling a pellet.  It’s a behavior I’ve seldom seen and rarely photographed because it typically happens very quickly, many birds  don’t do it at all and it often occurs only once per day or so with many species.  A pellet, sometimes referred to as a bolus, is a clump of indigestible material that is formed in the crop and eventually regurgitated.  Depending on the diet of the bird it may be made of feather, bone, fur and/or chitin from insect or crustacean exoskeletons.    Canon 7D, 1/4000, f/6.3, ISO 500, 500 f/4, 1.4 tc At first I wasn’t taking many photos of this Willet because its lower legs were cut off by the rock perch but I did adjust my settings for quick action in case it took off or performed some other interesting behavior.      Canon 7D, 1/3200, f/6.3, ISO 500, 500 f/4, 1.4 tc The first indication I got that something might happen that would be interesting to photograph was when the bird pulled down its neck and there was a slight bulge in the throat.     Canon 7D, 1/3200, f/6.3, ISO 500, 500 f/4, 1.4 tc Then the Willet began trying to expel the pellet.      Canon 7D, 1/3200, f/6.3, ISO 500, 500 f/4, 1.4 tc What happens next appears to look almost like a gagging reflex.     Canon 7D, 1/3200, f/6.3, ISO 500, 500 f/4, 1.4 tc The pellet popped out so quickly that I didn’t even see it through the viewfinder…

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The Coyotes and the Plucky Pronghorn

 Yesterday Mia and I were witness to quite the little drama on a trip to Antelope Island to photograph birds.  It all started when we noticed the frantic calling of a Long-billed Curlew which flew over us several times in obvious distress.    Canon 7D, 1/2500, f/6.3, ISO 640, 500 f/4, 1.4 tc At  first we didn’t know what was causing all the ruckus but soon Mia spotted this coyote.  A couple of minutes later we noticed a second coyote nearby.  We suspect that the curlew had a nest in the vicinity and it was disturbed by the foraging coyotes.  Soon both coyotes disappeared into a ravine but we hung around hoping for more flight shots of the curlew.     Canon 7D, 1/1600, f/7.1, ISO 640, 500 f/4, 1.4 tc Then, almost a quarter-mile away, we spotted the coyotes again but this time a doe Pronghorn (at least I think it’s a female and not a young male) had entered the scene.  There was obviously going to be a confrontation and at first I assumed that the coyotes would be the aggressors but I was quickly proven wrong.      Canon 7D, 1/1600, f/7.1, ISO 640, 500 f/4, 1.4 tc This doe had pluck!  After a few seconds of staring each other down the pronghorn charged the coyote on the right.     Canon 7D, 1/1600, f/7.1, ISO 640, 500 f/4, 1.4 tc That coyote beat a hasty retreat but the teamwork the coyotes showed was impressive.  They always stayed a short distance apart and whenever the doe would…

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Common Raven Disposing of Eggshells

 When this Common Raven landed on a large rock fairly close to me last week on Antelope Island I could see that it had something in its beak and assumed that it was some type of food.  It wasn’t until I got home and processed the images that I could tell what it was.   Canon 7D, 500 f/4, 1.4 tc, 1/2500, f 6.3, ISO 500 It turns out that it was eggshell, presumably from its own nest.  In researching Common Raven eggs I found that they have this kind of marking and color (though there is some variability in both) and this shell remnant seemed to be about the right size for a raven so my assumption is that it’s a raven eggshell and not leftovers from a meal from raiding the nest of another bird.  There is a raven nest relatively close to this rock.    Canon 7D, 500 f/4, 1.4 tc, 1/2500, f 6.3, ISO 500 Here the raven is very carefully placing the shell in a crevice in the rocks.  At the time I took the photo I couldn’t figure out why the bird would simply abandon what I thought was food.      Canon 7D, 500 f/4, 1.4 tc, 1/3200, f 6.3, ISO 500 Here the raven has dropped the eggshell…     Canon 7D, 500 f/4, 1.4 tc, 1/2000, f 7.1, ISO 500 and then it hopped to the peak of the rock to “crow” about its accomplishment. Birds of North America Online says this about raven eggshell disposal – “No…

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Willet Wars

Earlier this week Mia and I witnessed an incredible display of avian aggression on Antelope Island.  I’ve often seen and photographed battling birds but I’ve never before seen such a long-lasting and vicious fight as this one between two Willets.  It lasted for over 20 minutes and I took 413 photos of the action but don’t expect high quality images in this post as the conditions were far from ideal.  We had contrasty sidelight, lots of obstructingvegetation between us and the birds and constantly changing lighting conditions as clouds moved in and out and the birds moved from place to place as the battle raged.  But as I’ve stated before on this blog I’ll often post images of interesting behaviors even if they are less than perfect in image quality.  And to me this behavior was certainly interesting.    Canon 7D, 500 f/4, 1.4 tc, 1/1600,  f/5.6, ISO 500 The Willets were already fighting as we approached them in my pickup and they mostly ignored us after pausing for a  few seconds when we first drove up.       Canon 7D, 500 f/4, 1.4 tc, 1/1250,  f/5.6, ISO 500 In this and the following image the bird on the right had its bill tightly clamped on the upper mandible of the other bird.     Canon 7D, 500 f/4, 1.4 tc, 1/1250,  f/5.6, ISO 500 The bird on the left was desperately trying to break the grip of its tormentor but it took some struggling before it finally succeeded.       Canon 7D, 500 f/4, 1.4 tc, 1/1250,  f/5.6, ISO…

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A Loggerhead Shrike, a Spider and Spit

 A few days ago Mia and I found this Loggerhead Shrike sitting prettily on a dried sunflower on Antelope Island.  The bird was using the sunflower as a hunting perch.    1/1600, f/8, ISO 500 I’ve always been amazed by the incredible eyesight of many bird species.  This shrike somehow spotted a spider crawling through the thick grass about 20 feet away from where it was perched and immediately flew down to grab it.      1/1600, f/7.1, ISO 500 It was a relatively small spider and I have no idea how the shrike was able to see it in all the dense grass.  Even though the background is busy here I still liked the shot for the interesting look at both the spider and the tongue of the shrike.  It’s my presumption from looking at this photo that the saliva of the shrike is viscous and sticky, enabling the prey to stay attached to the tongue during the very fast process of pulling the spider to the back of the throat with the tongue.      1/1600, f/7.1, ISO 500 A heavily cropped, close-up view of the same image provides a clue.  You can see that there’s a sheet of saliva stretched between the bottom of the tongue and the floor of the lower mandible and it does appear to be quite viscous.  I had no idea that it would be so “juicy” in there.  Nothing earth-shattering here, just some avian trivia  in a photo that I found interesting (yes, my interests can be…

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Early Spring Birds and Craziness on Antelope Island

 Typically our first spring camping trip is a shake-down cruise for the trailer to Antelope Island.  If anything goes wrong with the trailer (and it sometimes does after sitting all winter) I’ll be relatively close to home.  This year we spent the last two days of March on the island.  Most of the photos in this post were taken on that trip.   1/2500, f/6.3, ISO 500  There’s been a few Western Meadowlarks on the island for much of the winter but they’ve returned in large numbers now.  In all my travels in the west I don’t think I’ve ever seen any other area with such a high concentration of this species.   At times their beautiful song resonates all over the hills of the island.  Meadowlarks always bring back fond memories for me of growing up on the Montana farm.      1/2500, f/6.3, ISO 500 Loggerhead Shrikes are another very common species, especially on the northern part of the island.   They’ve been absent all winter but we’re seeing more of them on each visit now.   It was cloudy when this image was taken and I didn’t get a lot of light in the eye but I think there’s just enough.      1/2500, f/7.1, ISO 500 I always look forward to the return of the Long-billed Curlews with great anticipation and they started appearing about 10 days ago.  I was happy to get this shot of the male on the right displaying for the female.  Male and female curlews are almost identical but they can be differentiated by their…

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Chukars of Antelope Island

 The Chukar, also known as the Chukar Partridge, is a species first introduced into North America from India in 1893.  Since then they have flourished, particularly in the Great Basin of the American west where the largely feed on the seeds and leaves of cheat grass.  Antelope Island in the Great Salt Lake provides perfect habitat for them and they abound there.    Chukar calling In the springtime there are times when the hillsides sound like the island has been overrun by domestic chickens from the calling of the Chukars.      Preening on a rock perch Chukars are very prone to perch on rocks – especially in the spring.  While there they call to other birds and preen.  Sentinel birds of a flock also prefer elevated perches while on lookout, which of course is ideal for the bird photographer.      Parent with chicks And here’s one of the reasons there’s so many Chukars on Antelope Island – the breed prodigiously.  Clutch size can be up to 21 eggs!     Chukar covey on boulder In late summer and fall Chukars often congregate in large groups.  These coveys tend to consist of adults and their offspring but several family groups may mix together.      Preparing to jump off the rock Like some other upland game birds, Chukars are often reluctant to fly.  They will typically jump down from their perch and scurry through the vegetation to hide.  They are very fast runners and easily outrun a human on foot.     Rock hopping  I’m often tempted to call these birds “rockhoppers” because of their tendency…

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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…

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Photographing Birds on Antelope Island

  My previous post was an overview of the geology of Antelope Island and its non-bird wildlife.  Here, I’ll focus on its birds.   Juvenile Loggerhead Shrike begging for food Loggerhead Shrikes are common on many parts of the island during summer.  They can be a challenge to approach but those few that nest close to the road eventually get used to traffic so if you photograph from your vehicle you can often get quite close.  Here this juvenile was begging for food that was being delivered by a parent just out of frame to the left.    Loggerhead Shrike with dragonfly  Shrikes are often called “butcher birds” for their practice of temporarily impaling their prey on thorns or other sharp projections.   This juvenile had done just that with the dragonfly but it wasn’t very good at it yet and in the end just decided to eat it instead of store it away.     Loggerhead Shrike with spider Shrikes are opportunistic carnivores known to feed on insects, spiders, amphibians, small reptiles, rodents and other birds.   This one also attempted to impale the prey before eating it.     Juvenile Burrowing Owl practicing its parallax technique on me Burrowing Owls are one of my favorite species on the island though they can be difficult to locate from year to year as they often don’t seem to nest in the same burrow the next year.  In the summer of 2009 there was an entire family of owls along the causeway to the island nesting under concrete rubble, as in the…

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Antelope Island

  Of the eight major islands in the Great Salt Lake, Antelope Island is the largest at 15 miles long and 4.5 miles wide.  Frary Peak reaches an elevation of 6596 feet.  The island has an intriguing history, interesting geology and free roaming herds of bison, bighorn sheep, mule deer and pronghorn, in addition to a variety of smaller mammal species and plentiful birds.  It is one of my very favorite photography locations – especially for birds.  In this blog post I will present an overview of the island and some of its wildlife.  My next post will deal specifically with bird photography on the island.  The north end of Antelope Island at sunrise as seen from the causeway access road There is a 7 mile long causeway road that provides the only access to the island, which is actually a peninsula when the Great Salt Lake water levels are low.  It’s common to see a variety of wildlife along this causeway including coyotes sprinting at the first sight of an early morning vehicle, American Kestrels, Northern Harriers, Burrowing Owls, Common Ravens and a variety of waterfowl and shorebirds where the water comes closer to the causeway.    Approaching the north end of Antelope Island  As you get closer to the island the water comes right up to the causeway’s edge and typically there’s hordes of waterfowl and shorebirds very close to the road.  In the photo above, several shoreline levels of ancient Lake Bonneville can be seen where wave action eroded “benches” in the sides of the…

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