A comprehensive field guide to all the warbler species of Europe, the Near East and Northern Asia. Each species is described in detail, with extensive information on plumage differences between sexes, through ageing, and in different seasons, plus complete descriptions of calls and songs. The colour plates illustrate every species, in a variety of plumages; the plates are arranged for quick comparison between similar species, with important field notes listed in the annotations. Frequently confused species are compared side by side. Accompanying the plates are highly detailed maps showing seasonal distribution, and annotated with a detailed description of the occurrence of the species, including records of vagrants outside its normal range.