
%0 Journal Article
%A Prince, PA 
%A Rodwell, SP 
%T Aging Immature Black-browed and Grey-headed Albatrosses Using Moult, Bill and Plumage Characteristics
%J Emu
%D 1994/12/01
%V 94
%N 4
%P 246-254
%K 
%R https://doi.org/10.1071/MU9940246
%U https://www.publish.csiro.au/paper/MU9940246 
%X 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. 
