Handbook of the Mammals of the World, Volume 1: Carnivores

Wilson, Don E.; Mittermeier, Russell A.

Handbook of the Mammals of the World, Volume 2: Hoofed Mammals

Wilson, Don E.; Mittermeier, Russell A.

The Kittiwake

COULSON, John C.

Handbook of the Birds of the World, Special Volume: New Species and Global Index

DEL HOYO, Josep, Andrew ELLIOTT, and Jordi SARGATAL, Editors; Butchart, Stuart; Collar, Nigel; Stattersfield, Alison; Bennun, Leon

Illustrations by Arlott, Norman; Burn, Hilary; LEWINGTON, Ian; Quinn, David; Rose, Chris; Small, Brian; Worfolk, Tim

Illustrated Checklist of the Birds of the World, Volume 2: Passerines

Josep del Hoyo and Nigel J. Collar, Chief Authors

Illustrated Checklist of the Birds of the World, Volume 1: Non-passerines

Josep del Hoyo and Nigel J. Collar, Chief Authors

Extinct Birds

Julian Hume and Michael P Walters