Population ecology of migratory birds : papers from a symposium held at the Migratory Bird Populations Station Laurel, Maryland 9-10 October 1969.
Symposium on the Population Ecology of Migratory Birds(1969 :Laurel, Md.)
American Institute of Biological Sciences.
United States.Bureau of Sport Fisheries and Wildlife.
Washington : Bureau of Sport Fisheries and Wildlife,
1972.
"Sponsored by American Institute of Biological Sciences in cooperation with Bureau of Sport Fisheries and Wildlife, United States Department of the Interior."
Includes bibliographies.
Bird populations
Birds
Birds