作者: Klaus Malling Olsen

This is the first complete identification guide to the skuas of the world.Skuas (and jaegers) are a fascinating and popular group of seabirds that make up a subfamily of just seven species. They can …

Covering 22 species found in the Western Palearctic and North America, this guide lists each species under the sections of: field identification; moult; description; geographical variation; measureme …

This eagerly awaited guide offers the most comprehensive treatment ever published on the gulls of Europe, Asia and North America.A total of 43 species is treated, and every species is described in co …

ONE OF THE BB/BTO BEST BIRD BOOKS OF THE YEAR, 2018 This book represents the definitive photographic guide to gulls, by the world”s greatest authority on gull identification. This outstanding new gu …

This is the first complete identification guide to the skuas of the world. Skuas (and jaegers) are a fascinating and popular group of seabirds that make up a subfamily of just seven species. They can …

Covering 22 species found in the Western Palearctic and North America, this guide lists each species under the sections of: field identification; moult; description; geographical variation; measureme …

This eagerly awaited guide offers the most comprehensive treatment ever published on the gulls of Europe, Asia and North America. A total of 43 species is treated, and every species is described in c …

ONE OF THE BB/BTO BEST BIRD BOOKS OF THE YEAR, 2018 This book represents the definitive photographic guide to gulls, by the world”s greatest authority on gull identification. This outstanding new gu …