Owls of the World
Claus König, Friedhelm Weick & Jan-Hendrik Becking
Pigeons and Doves
David Gibbs
Shrikes and Bush-shrikes
Tony Harris
Stonechats
Ewan Urquhart
Crows and Jays
Steve Madge
Tits, Nuthatches and Treecreepers
Simon Harrap
Terns of Europe and North America
Hans Larsson & Klaus Malling Olsen
Gulls of Europe, Asia and North America
Klaus Malling Olsen
A Handbook to the Swallows and Martins of the World
Angela Turner & Chris Rose
New World Warblers
Jon Curson