@book{9769,
	author = {Cooke, May Thacher,},
	title = {Flight speed of birds /},
	publisher = {U.S. Dept. of Agriculture,},
	year = {1973.},
	series = {Circular / United States Department of Agriculture ;},
	address = {Washington, D.C. :},
	note = {Contribution from Bureau of Biological Survey.}
}