Species, Age and Sex Identification of Ducks Using Wing Plumage

This publication contains procedures used by the U.S. Fish and Wildlife Service to determine the species, sex and age composition of the harvest of North American ducks using detached wings contributed by hunters.

Author Name
U.S. Fish and Wildlife
Book URL
https://scsl.ent.sirsi.net/client/en_US/scsl/search/detailnonmodal/ent:$002f$002fSD_ILS$002f0$002fSD_ILS:689788/one
Image
Cover of Species, Age and Sex Identification of Ducks Using Wing Plumage
Book Categories
Birding