Mehr lesen
Zusatztext Exceptional ... the single best all-round book on gulls available. Informationen zum Autor Klaus Malling Olsen is one of Denmark's foremost ornithologists. He is a widely travelled field birder and tour leader with a particular interest in seabirds. He has written numerous papers on field identification and is the author of Terns of Europe and North America (1995), which was also illustrated by Hans Larsson, and of a guide to the northern skuas that was translated into Swedish (1988) and Dutch (1992). He compiled the official Danish list, Danmarks Fugle - en oversigt (1992) and contributed to Where to Watch Birds in Scandinavia (1996). He is currently serving his second term as a member of the Danish Rarities Committee. Klappentext 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 guide covers all of the world's gull species, tackling some of the most notoriously difficult identification and taxonomic challenges in birding. Concise text - complemented by an accurate colour range map - places particular emphasis on field identification, with detailed discussion of variation, and coverage of habitat, status and distribution.Each photograph has been carefully selected to highlight identification criteria and, crucially, to allow age and subspecific separation in the field. This book is an invaluable tool for identifying gulls, featuring the most sought-after rarities as well as beautiful, easy-to-identify species. Vorwort ONE OF THE BB /BTO BEST BIRD BOOKS OF THE YEAR, 2018. The definitive photographic guide to gull identification. Zusammenfassung 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 guide covers all of the world's gull species, tackling some of the most notoriously difficult identification and taxonomic challenges in birding. Concise text - complemented by an accurate colour range map - places particular emphasis on field identification, with detailed discussion of variation, and coverage of habitat, status and distribution.Each photograph has been carefully selected to highlight identification criteria and, crucially, to allow age and subspecific separation in the field. This book is an invaluable tool for identifying gulls, featuring the most sought-after rarities as well as beautiful, easy-to-identify species. Inhaltsverzeichnis Acknowledgements Introduction: - Geographical area - Sequence of species - Subspecies - General information on ageing of gulls - Ages and moult - Moult differences in different geographical areas - Some problems in worn, moulting and diseased birds - Colour abnormalities and oil staining - Oiling - Some notes on colour differences, light effects and bare part coloration - Judging size and jizz - the first steps to field identification - Judging photos - Hybrid gulls Introduction to the species accounts Topography The Species Accounts (1-61) ...
