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BIRDS AND POWER LINES COLLISION, ELECTROCUCION AND BREEDING Miguel Ángel Ferrer López y JANS, GUYONNE F.E. (COORDS.)
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BIRDS OF BRITAIN AND EUROPE WITH NORTH AFRICA AND THE MIDDLE EAST HEINZEL, HERMANN y FITTER, RICHARD
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BIRDS OF CENTRAL AMERICA: BELIZE, GUATEMALA, HONDURAS, EL SALVADOR, NICARAGUA, COSTA RICA, AND PANAMA (PRINCETON FIELD VALLELY, ANDREW
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BIRDS OF EAST AFRICA: KENYA, TANZANIA, UGANDA, RWANDA, BURUNDI SECOND EDITION ( PRINCETON FIELD GUIDES #127 ) STEVENSON, TERRY
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