Movements of Ruddy Ducks during the hard winter of 1978/79
01 January 1982
Main paper
Since the first escaped Ruddy Ducks Oxyura jamaicensis bred in Britain in 1960 (King 1976), they have undergone a phenomenal population expansion. In an earlier review of their status, Hudson (1976) estimated a population growth of 25% per annum and, a...
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