AGING IMMATURE BLACK-BROWED AND GREY-HEADED ALBATROSSES USING MOLT, BILL AND PLUMAGE CHARACTERISTICS

被引:7
|
作者
PRINCE, PA
RODWELL, SP
机构
[1] British Antarctic Survey, Natural Environment Research Council, Cambridge, CB3 OET, High Cross, Madingley Road
关键词
D O I
10.1071/MU9940246
中图分类号
Q95 [动物学];
学科分类号
071002 ;
摘要
We describe how to age immature Black-browed Diomedea melanophris and Grey-headed Albatrosses D. chrysostoma up to age 6 years (when they have usually acquired adult characteristics), from a combination of the age and pattern of moult of flight feathers, bill colouration and certain plumage characteristics. This is based on known age birds retrapped at colonies during the breeding season. Ageing of immatures at other times may be complicated by them being in active moult; we provide further guidance for these circumstances.
引用
收藏
页码:246 / 254
页数:9
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