Birds -- Ecology -- America : Ecology and management of neotropical migratory birds : a synthesis and review of critical issues / edited by Thomas E. Martin and Deborah M. Finch
Birds -- Ecology -- North America : Boreal Birds of North America : a Hemispheric View of Their Conservation Links and Significance / Jeffrey V. Wells, editor
Birds -- Ecuador. : A checklist of the birds of the mainland of Ecuador / compiled by Thomas Y. Butler ; contributors, G. Stuart Keith, Thomas H. Davis, Jr., William J. Weiss, Jr
1975
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Birds -- Ecuador -- Identification : Wildlife of Ecuador : a photographic field guide to birds, mammals, reptiles and amphibians / Andrés Vásquez Noboa ; photography by Pablo Cervantes Daza
Birds -- Effect of fires on -- Australia -- Victoria. : Effects of repeated low-intensity fire on bird abundance in a mixed eucalypt foothill forest in south-eastern Australia / Richard H. Loyn, Ross B. Cunningham and Christine Donnelly
Birds -- Effect of habitat modification on -- Australia. : Birds of eucalypt forests and woodlands : ecology, conservation, management / edited by A. Keast ... [and others] ; illustrated by D. McFarland, D. Milledge, J. Trompp
Birds -- Eggs -- Great Britain. : The nests and eggs of non-indigenous British birds or such species that do not breed within the British Archipelago / Charles Dixon