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.
Photo Category: Treasure - Natural History - Birds
Photo Location: Western United States