La Tour du Valat

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Results of recoveries of Mallards ringed in winter at Nuremberg

Manfred Kraus, Auteur ; Wener Krauss, Auteur

Dans Ornithologischer Anzeiger (37(2) May, 1998)

There were 358 records (12%) of 3079 Mallards ringed in the winter months between 1 Jan 82 and 30 Dez 89.82% of the records occurred by hunting, overproportionately more males than females were shot. The mortality averaged 45%, the life expectat[...]

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