00878cam a22002771a 4500 agr37000148 DLC 20260227110955.0 790319s1937 dcu bs f000 0 eng agr37000148 (OCoLC)4752723 DLC OCl DNAL DLC premarc QL698 .C665 1 Ag84C no.428 P000 Cooke, May Thacher, 1885- Flight speed of birds / By May Thacher Cooke. Washington, D.C. : U.S. Dept. of Agriculture, 1973. 14 p. ; 24 cm. Circular / United States Department of Agriculture ; no. 428 Contribution from Bureau of Biological Survey. Bibliography: p. 10-13. Birds Flight. Circular (United States. Department of Agriculture) ; no. 428. 9769 9769