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Editore: The British Trust for Ornithology, 1971
Da: Shore Books, London, Regno Unito
Rivista / Giornale
Soft cover. Condizione: Very Good. 60 pages. Illustrated. Christopher Perrin's "Age of First Breeding and Adult Survival Rates in the Swift" / K D Smith "Notes on Oenanthe Species in Winter in Africa" / Kenneth Williamson "A Bird Census Study of a Dorset Dairy Farm" / David Holyoak "Movements and Mortality of Corvidae" / A A Dunthorn "The Predation of Cultivated Mussels by Eiders" / M P Harris "Ecological Adaptations of Moult in Some British Gulls" (SL#83).