Birds of Colorado

H is for Hawk: A BBC2 Between the Covers pick

Birds of Florida

Odd Birds

Birds of South Carolina

The Backyard Bird Chronicles

Backyard Wildlife

Field Guide to the Birds of Oman

Birds of North Carolina

Grief Is the Thing with Feathers

The Handbook of Bird Identification: For Europe and the Western Palearctic

Bugs & Slugs

The Field Guide to Dumb Birds of North America

Butterflies & Moths

The Helm Guide to Bird Identification

Birds of Prey

Birds: ID Insights: Identifying the More Difficult Birds of Britain

Birds of New England: Edition 2

Field Guide to the Birds of Northern India

Mushrooms: A Falcon Field Guide, Edition 2