Facing Extinction: The World's Rarest Birds and the Race to Save Them, Second edition
Paul Donald, Nigel Collar, Stuart Marsden and Deborah J Pain
Swifts : A Guide to the Swifts and Treeswifts of the World, First edition
Chantler, Phil; Driessens, Gerald
Rare Birds of the World
Mountfort, Guy and Norman Arlott
Illustrations by Arlott, Norman
Living Birds of The World
Gilliard, E. Thomas
Curassows and Related Birds
DELACOUR, Jean and Dean AMADON.
Swans of the World
Wilmore, Sylvia Bruce
Birding Around the World: A Guide to Observing Birds Everywhere You Travel
Lotz, Aileen R.
Birds of the World: a Check List
Clements, James F.
Birds of Man's World
Wading Birds of the World
Soothill, Eric;Soothill, Richard
Introduced Birds of the World: The worldwide history, distribution and influence of birds introduced
Long, John L.
Parrots of the World
Forshaw, Joseph M.