Aves, p�le ornithologique de Natagora

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Aves, 12/3 | 1975 | 105-126

Godin, J.

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Article summary

The author analyses the diet of the Barn Owl (Tyto alba) in Belgium and North of France by the mean of pellets. He leaded two field studies : the first in 1969, on 3 adult Barn Owls from the region of Valenciennes (north of France), the second in 1973, on 4 young Barn Owls in Saint-abert (North of France). To these data, he compares the numbers given by other authors for the same place. Mammals make up more than 90 % from the diet of the nocturnal rapacious birds.The most frequent preys are : the Common Shrew (Sorex araneus), the White-toothed Shrew (Crocidura russula), the Pine Vole (Pitymys subterraneus), the Common Vole (Microtus arvalis), the short-tailed Vole (Microtus agrestis). The House Sparrow (Passer domesticus) is sometimes a prey of minor importance for the Barn Owl. Some differences may be pointed out between the percentages of the most numerous preys, they seem to owe to prey density and to the area of their own biotope in the hunting territory of the Barn Owl.

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