Wildfowl: An Identification Guide to the Ducks, Geese and Swans of the World

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

Crows and Jays

Raptors of the World

Sylvia Warblers: Identification, taxonomy and phylogeny of the genus Sylvia

Owls of the World: Edition 2

Pheasants, Partridges & Grouse: Including buttonquails, sandgrouse and allies

The Helm Guide to Bird Identification

Finches and Sparrows

Reed and Bush Warblers

Flight Identification of Raptors of Europe, North Africa and the Middle East

Understanding Bird Behaviour

Birds of Venezuela

Hawks at a Distance: Identification of Migrant Raptors

Warblers of Europe, Asia and North Africa

Gulls of Europe, Asia and North America

Birds of New Guinea: Second Edition, Edition 2

A Handbook to the Swallows and Martins of the World

Woodpeckers of the World: The Complete Guide

The Crossley ID Guide: Eastern Birds