Diatoms of the Bering Sea

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суббота, 11 апреля 2015 г.

Accipiters in Iowa

Today we tried to sort out the genus Accipiter. Rummaging through the photos archive revealed no photos of this genus :( Time to hunt!

In Iowa there are Sharp-shinned Hawk, Cooper's Hawk, and Northen Goshawk.

Sharp-shinned Hawk is found here in winter or year-round, according to different sources. A small hawk that sounds as a "typical" hawk should: a high-pitched kik-kik-kik.

Cooper's Hawk is almost exactly the same in coloring, but larger. Its call is much lower and more resounding.

Northern Goshawk is rare in Iowa (and I've never seen it), mostly seen in winter. Big, very distinct in coloring, both adults and juveniles. The voice is similar to all other hawks on the planet, but a little raspy or even creaky. Said to be more silent than other hawks.

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