Download e-book for iPad: The Skuas (Poyser Monographs) by Robert W. Furness

By Robert W. Furness

ISBN-10: 1408136694

ISBN-13: 9781408136690

Many birdwatchers may possibly by no means have obvious a skua; those that have will so much most likely have brilliant stories of 1 or different species flying powerfully earlier a headland, or twisting and diving in pursuit of its piratical intentions in the direction of a food-laden seabird - or, probably extra memorably nonetheless, of themselves taking evasive motion from the power-diving irate skua whose territory they've got unwisely invaded. the complete type of the skuas remains to be debated, yet Dr Furness of the utilized Ornithology Unit, Glasgow collage, favours six species, of genera, with 5 subspecies, in keeping with present wisdom and his personal lengthy and devoted box reports and learn. the entire species are handled relatively below the subsequent bankruptcy titles: Early background and category, Distributions and populations, Migration styles, Reversed sexual measurement dimorphism, Behaviour, meals and feeding, Kleptoparasitism, Plumage polymorphism, Breeding structures and social business enterprise, Breeding - laying to hatching, Breeding - hatching to fledging, inhabitants dynamics, pollution, Skuas and agriculture, Skuas and conservation. The textual content is supported by means of a hundred maps and diagrams, 30 photos and sixty five tables. moreover, John Busby contributes 35 evocative drawings which greater than beautify this erudite and readable precis of a powerful and various crew of birds. Jacket work via John Busby

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