Birds in Their World
A Coded Workbook of Birds of the World: 2 Volumes
Edwards, Ernest P.
Owls of the World: A Photographic Guide, Second edition
Martin, Brian P.
Fairy-wrens and Grasswrens: Maluridae (Oxford Bird Families of the World)
Rowley, Ian and Eleanor Russell
Birds of the World in Color
The True Shrikes (Laniidae) of the World: Ecology, Behavior and Evolution
Natural Treasures Illustrations Series-Birds: 800 Kinds of Birds Around the World
Bird Conservation: Global evidence for the effects of interventions
Williams, David R.; Robert G. Pople, David A. Showler, Lynn V. Dicks, Matthew F. Child, Erasmus K.H.J. zu Ermgassen and William J. Sutherland
Threatened Birds of the World
Sattersfield, Alison J. and David R. Capper, Senior Editors
Helpers at Birds' Nests: A Worldwide Survey of Cooperative Breeding and Related Behavior
Skutch, Alexander F.
The World of Birds
Elphick, Johnathan; photography by David Tipling