Skuas and Jaegers: A Guide to the Skuas and Jaegers of the World more books like this

by Klaus Malling Olsen, Hans Larsson (Illustrator)

Skuas (or jaegers) are a popular group of seabirds. This title examines in detail all the identification problems associated with this difficult group. The taxonomy of the world's seven species of skuas has long been a subject of debate, compounded by the difficulty of distinguishing between the four catharacta species in the field. Klaus Malling ...

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The Arctic Skua a study of the ecology and evolution of a seabird more books like this

by O'Donald

This book describes the results of a long-term study of the ecology, evolutionary genetics and sociobiology of a seabird, the Arctic Skua. This species is polymorphic: the birds show one of three, genetically different forms of plumage - pale, intermediate and dark. The forms vary in frequency from predominantly pale in the north to dark in the ...

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Light and Electron Microscopic Studies of Ascobolus Stercorarius: II. Ascus and Ascospore Ontogeny more books like this

by Kenneth Wells

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