A Field Guide to the Nests, Eggs and Nestlings of British and European Birds
The Great Gray Owl: Phantom of the Northern Forest
NERO, Robert W.
Population Ecology of the Cooperatively Breeding Acorn Woodpecker [PB]
Koenig, Walter D.; Mumme, Ronald L.
The Ducks, Geese and Swans of North America: a Vade Mecum for the Naturalist and the Sportsman
Kortright, Francis H.
Illustrations by T.M. Shortt
Cowbirds and Other Brood Parasites
Ortega, Catherine P.
Woodpeckers: An Identification Guide to the Woodpeckers of the World
Winkler, Hans, with David A. Christie and David Nurney
North American Owls: Biology and Natural History [First Edition]
Johnsgard, Paul A.
Listening in the Field: Recording and the Science of Birdsong
Social Behaviour in Animals: with Special Reference to Vertebrates
The Evolution of Flight
Glaeser, Georg, Hannes F. Paulus, and Werner Paulus
Island Biology: Illustrated by the Land Birds of Jamaica