Download or read book Gulls of Europe, Asia and North America written by Klaus Malling Olsen and published by Bloomsbury Publishing. This book was released on 2010-09-30 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.