Hawk Swainsons Hawk is a photograph by Movie Poster Prints which was uploaded on February 26th, 2013.
Hawk Swainsons Hawk
Swainson's Hawk (Buteo swainsoni), is a large Buteo hawk of the Falconiformes, sometimes separated in the Accipitriformes like its relatives. This... more
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Hawk Swainsons Hawk
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Movie Poster Prints
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Swainson's Hawk (Buteo swainsoni), is a large Buteo hawk of the Falconiformes, sometimes separated in the Accipitriformes like its relatives. This species was named after William Swainson, a British naturalist. It is colloquially known as the Grasshopper Hawk or Locust Hawk, as it is very fond of Acrididae (locusts and grasshoppers) and will voraciously eat these insects whenever they are available.
Their breeding habitat is prairie and dry grasslands in western North America. They build a stick nest in a tree or shrub or on a cliff edge. This species is a long-distance migrant, wintering in Argentina; there is a single record of a vagrant from Norway.
This species or its immediate predecessor is the ancestor of the Gal�pagos Hawk, as demonstrated by recent research. The latter diverged from the mainland birds perhaps 300,000 years ago, a very short time in evolution
Buteo swainsoni. Swainson's Buzzard, a variety of hawk. This image was included in: Reports of Explorations and Surveys .... Volume X. 1859. Plate XII. P. 16 of U. S. Pacific Railroad Explorations and Surveys 38th,39th, 41st Parallels. Library Call Number F593 .U58 1855.
Image ID: libr0161, Treasures of the NOAA Library Collection
Location: Western United States
Category: Treasure/Natural History/Birds/
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February 26th, 2013
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