[Illust] Swainson's Hawk (Buteo swainsoni) {!--황무지말똥가리--> 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 Photographer: Archival Photograph by Mr. Sean Linehan, NOS, NGS Photo Source: The NOAA Photo Library http://www.photolib.noaa.gov The National Oceanic & Atmospheric Adminstration (NOAA) http://www.noaa.gov/