An essential field guide companion covering species pairs or groups that are difficult to identify.

An essential field guide companion covering species pairs or groups that are difficult to identify. This book covers difficult identification issues by looking at tricky species pairs or groups of birds, and comparing and contrasting their respective features. Designed as a field companion, it supplements the standard field guides and provides much additional information. As well as detailed texts, the books include extensive illustrations of all relevant ages and plummages of the species concerned.

"...a godsend to anyone wanting to tell a bar-tailed from a black-tailed godwit, a firecrest from a goldcrest or a greenfinch from a siskin." - Daily Express

"...a helpful new book. ...It is carefully detailed but it is also agreeably written." - The Times

"It does exactly as it says on the cover...a fine book" - Sunday Express

"...this is an indispensable addition to your library." - Scottish Birds