Category: Willets

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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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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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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