Birds Using Bison Hair As Nesting Material

For millennia a variety of North American bird species used bison hair during nest construction but when the “buffalo” was brought to the brink of extinction by hunters in the late 1800’s that resource was essentially gone. Today there are relatively few places where bison hair is available to birds and Antelope Island is one of them.

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Nest-building Western Kingbird

Yesterday morning we photographed an industrious female Western Kingbird as she worked at constructing her nest. In this species the sexes are similar but only the female builds the nest. The male hung around nearby as he watched over the laborious construction process and offered his mate encouragement (that was good of him don’t you think?).

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Northern Harrier with Nesting Material

 I’ve been photographing Northern Harriers in northern Utah for five years now and until earlier this week I’d only seen this species carrying nesting material once before and wasn’t able to photograph it.   Harriers are very common here during winter but most of them head north for the breeding season and those that stay usually build their nests in inaccessible areas of the marsh, so it’s rare for me to see any nesting activities.      Canon 7D, 500 f/4, 1.4 tc, 1/2000, f/7.1, ISO 400 Two days ago Mia and I were photographing birds at Bear River Migratory Bird Refuge.  We were about to call it a day because it was late in the morning and light was no longer optimal when we spotted this harrier flying at a distance.  We figured it would veer off before it got close, as they always seem to do out there, but this one kept coming toward us.  We were watching it through our lenses and soon noticed that it had nesting material in its beak.    Canon 7D, 500 f/4, 1.4 tc, 1/2000, f/7.1, ISO 400 By chance we happened to be at a place on the dirt road that was within 100′ or so of the  nest of this bird.  It decided to ignore us and come in to complete its delivery.     Canon 7D, 500 f/4, 1.4 tc, 1/2000, f/7.1, ISO 400 The nest is apparently in this bed of last year’s dead Phragmites.  The dark spots you see in the last three images of this…

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