Creator | Title | Description | Subject | Date | ||
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1 | Broughton, John | Size of the bursa of fabricius in relation to gonad size and age in laysan and black-footed albatrosses | Age determination can be difficult for birds that undergo little or no plumage change during life. This is the case for Laysan and Black-footed Albatrosses (Diomedea immutabilis and D. nigripes). The juvenile plumage for both these North Pacific albatrosses is completely grown by about five to six m... | Birds; Species; Development | 1994 |