Bøger af William S. Clark

Africa has the most diverse range of raptors of any continent, with almost a third of the world's species occurring in the region. This comprehensive new book examines all of these species in impressive detail, emphasizing their field identification. A full range of plumages is illustrated for each species, with each plate usually covering only two species. The specially commissioned artwork has been painted by raptor enthusiast Rob Davies. The authoritative text treats the identification of both perched and in-flight birds and covers all major plumages and morphs. These texts are accompanied by up-to-date range maps and many fabulous color photographs from some of the world's leading bird photographers. This new book will be an essential reference for all those with an interest in raptors and especially in African raptors.

A photographic guide to North American diurnal birds of prey. Written by well-known experts, it provides a guide to the variations in the species, allowing for recognition of key identification points. It contains 365 photographs, each with an explanatory caption and supporting text describing 43 species of diurnal raptors found in North America.

The essential field guide to the raptors of Mexico and Central AmericaRaptors are among the most challenging birds to identify in the field due to their bewildering variability of plumage, flight silhouettes, and behavior. Raptors of Mexico and Central America is the first illustrated guide to the region's 69 species of raptors, including vagrants. It features 32 stunning color plates and 213 color photos, and a distribution map for each regularly occurring species. Detailed species accounts describe key identification features, age-related plumages, status and distribution, subspecies, molt, habitats, behaviors, potential confusion species, and more.Raptors of Mexico and Central America is the essential field guide to this difficult bird group and the ideal travel companion for anyone visiting this region of the world.Covers all 69 species of raptors found in Mexico and Central AmericaFeatures 32 color plates and hundreds of color photosProvides multiple illustrations of each speciesDepicts and describes variations in plumage by individual, morph, age, and regionDescribes behavior, food preferences, hunting strategies, vocalizations, and moltCovers rare and extralimital speciesIncludes distribution maps and flight silhouettes