Molt and Aging Criteria for Four North American Grassland Passerines: Biological Technical Publication by U. S. Fish &. Wildlife Service

Molt and Aging Criteria for Four North American Grassland Passerines: Biological Technical Publication

U. S. Fish &. Wildlife Service

30 pages • missing pub info (editions)

nonfiction childrens nature
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1Prairie and grassland habitats in central and western North America have declined substantially since settlement by Europeans (Knopf 1994) and many of the birds and other organisms that inhabit North American grasslands have experienced steep dec...

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