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Age-related Foraging Skills and Behaviour of the Northern Bald Eagle (Haliaeetus Leucocephalus Alascanus Townsend) at Lake Ainslie, Cape Breton

Eric Craig Ogden

出版	Acadia University, 1983
URL	http://books.google.com.hk/books?id=oOAgOAAACAAJ&hl=&source=gbs_api