Another ground-breaking title in the highly acclaimed Helm Identification series, this book looks at this popular family in great detail. The gulls are a large family of seabirds, familiar and distinctive as a group, but one of the most challenging to separate at the species level, especially in their various stages of immature plumage. This guide offers the most comprehensive treatment ever published on the gulls of North America, Europe, and Asia and the total of 43 species are each depicted in considerable detail, with a full description of every plumage and racial variation. Confusion species are covered in particular detail. The very latest information on habitat, range, movement and breeding behaviour is accompanied by large, full-colour maps. The text is complemented not only by superb colour paintings by Larsson, but also by 800 colour photographs.
This important guide is published at a critical time in the development of gull taxonomy. The large white-headed gulls found in North America, Europe, and Asia comprise a super-species complex, with the precise relationships between various components still under considerable debate. A thorough illustrative and textual treatment of the group is needed, and this book provides the most recent and complete overview. This is the essential reference to a fascinating and endlessly challenging group of birds. Revised edition. 608 pages.