Gulls of Europe, Asia and North America

ISBN-13: 9780713670875 / Angielski / Twarda / 2004 / 608 str.

Klaus Malling Olsen;Hans Larsson

Opis

The standard text on the identification of the northern hemisphere's gulls, this book covers the plumage variation through age and subspecies of all 80 species in the region. With exhaustive coverage, detailed maps, and superb plates and photos, this book remains the definitive work on these birds, which represent the trickiest of all ID challenges.