A Bison’s Life Isn’t Easy

Life is far from a bowl of cherries for the Bison of Antelope Island and recently I’ve seen more evidence of that fact. Some of it is caused by natural behavior, some by unfortunate circumstance and some by the thoughtlessness and ignorance of humans.

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A Curious Coyote, A Reflection And A Compositional Quandary

Two days ago we found this coyote exploring along the Antelope Island causeway. We watched it gnaw on a duck or shorebird carcass (possibly falcon leftovers, based on past experience) and then it continued to look for something, almost anything, to eat. When it reached the end of a rocky spit jutting out into the Great Salt Lake it entertained us with some interesting behavior.

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Fighting Harriers

The seriousness of confrontations between Northern Harriers varies with the situation. Conflicts over food, especially during harsh winters, can be intense and dramatic but they often seem to spar with each other just for the “fun” of it. I’ve often seen and occasionally photographed both extremes of aggressive behavior.

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Finally! – Another Antelope Island Burrowing Owl

It’s been a tough summer for me with Burrowing Owls. Normally I spend a lot of time photographing them but this year they’ve been mostly uncooperative to the extreme – too skittish, too far away, too buried in vegetation and too scarce.

But I had a pleasant surprise two days ago on Antelope Island.

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The Interdependence Of Short-eared Owls And Voles

Though Short-eared Owls are one of the worlds most widespread owls, the species is highly dependent on the density of its small mammal prey, voles in particular. Since vole populations fluctuate wildly, Short-eared Owls show significant local variation in numbers and reproductive success from year to year.

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Perch-hunting Red-tailed Hawk

Red-tailed Hawks in North America are “sit and wait predators” who do most of their hunting (60 – 80%) from elevated perches. Though they do hunt from the air, that is not their primary hunting style. In fact, availability of elevated perches is a key factor in determining their foraging distribution.

Antelope Island is largely treeless and without power poles so Red-tails tend to be found in specific locations on the island where elevated natural perches are available. One of their favorite foraging spots is an area where there are large outcroppings of Farmington Canyon Complex rocks jutting out from the side of a small mountain, which is where I found this bird hunting voles

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