books by subject
Birds

Automobile Association Field Guide to the Birds of Britain and Europe

Bird Count: A Practical Guide to Bird Surveys

The Owl Who Liked Sitting on Caesar

The Audubon Society Field Guide to North American Birds: Western Region

Western Birds

Where to Watch Birds

Parrots of the Wild: A Natural History of the World's Most Captivating Birds

A Sparrowhawk's Lament: How British Breeding Birds of Prey Are Faring

Say Goodbye to the Cuckoo

Birds That Came Back

Florida's Fabulous Birds: Land Birds: Their Stories

Top 100 Birding Sites Of The World

Field Guide to the Birds of Nepal

The Snow Geese (Picador Classic)

Seaside and Moorland Birds

Port Development and Nature Conservation: Supply and Demand in the GB Ports Industry

Complete Mediterranean Wildlife: Photoguide

In Search of One Last Song: Britain's disappearing birds and the people trying to save them

Exploring the World of Birds: The Equinox Guide to Avian Life

Collins Wild Guide – Birds of Britain and Northern Europe (Collins Wild Guide S.)

The Birds of Buckinghamshire

John J.Audubon's Birds: "Birds of America" (Albums S.)

Beautiful Chickens: Portraits of Champion Breeds

Lomond Guide to Birds

The Atlas of Wintering Birds in Britain and Ireland

Peregrine Falcon

How Birds Work: Guide to Bird Biology

Wesley: The Story of a Remarkable Owl

Chris Packham's Birdwatching Guide: From Beginner to Birder
