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Two Critical Weeks for Fledgling House Sparrows
Автор: Maurice Baker
Загружено: 2016-07-17
Просмотров: 610464
Описание:
The two weeks after leaving the nest until they are left by the parents to look after themselves are a very important time for house sparrow fledglings as they have to learn some of the basic skills required to give than a chance of surviving to adulthood and to breed themselves next year.
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