Life histories of North American birds of prey. - Bent, Arthur Cleveland, 1866-1954 (New York Dover Publications, 1961)
"Unabridged and unaltered republication ... Part 1 was originally published in 1937 as Smithsonian Institution ... Bulletin 167; part 2 was originally published in 1938 as Smithsonian Institution ... Bulletin 170."
Bibliography: v. 1, p. 381-398; v. 2, 445-466.
Keywords: Birds -- Behavior; Birds -- North America; Birds of prey