Species, age, and sex identification of ducks using wing plumage
By: by Samuel M. Carney
Contributors: U.S. Fish and Wildlife Service
Publisher: U.S. Dept. of the Interior, U.S. Fish and Wildlife Service, 1992
Published: 1992
Place of publication: Washington, D.C
Language: eng
Number of pages: 144
Subjects: Ducks -- Identification; Ducks -- Age determination; Ducks -- Sexing
Notes: Shipping list no.: 92-0624-P