Size of the bursa of fabricius in relation to gonad size and age in laysan and black-footed albatrosses

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Publication Type Journal Article
School or College College of Social & Behavioral Science
Department Anthropology
Creator Broughton, John
Title Size of the bursa of fabricius in relation to gonad size and age in laysan and black-footed albatrosses
Date 1994
Description 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 months of age, just prior to their first flight, and is largely indistinguishable from the definitive basic plumage. Consequently, no well-documented methods of distinguishing newly fledged birds, older pre-breeders, or breeding-aged adults has been described for these species (Harrison 1985).
Type Text
Publisher Cooper Ornithological Society
First Page 203
Last Page 207
Subject Birds; Species; Development
Language eng
Bibliographic Citation Broughton, J.M. (1994). Size of the bursa of fabricius in relation to gonad size and age in laysan and black-footed albatrosses. The Condor, 96, 203-7.
Rights Management (c)Cooper Ornithological Society
Format Medium application/pdf
Format Extent 356,856 bytes
Identifier ir-main,1095
ARK ark:/87278/s6r5087h
Setname ir_uspace
Date Created 2012-06-13
Date Modified 2012-06-13
ID 705953
Reference URL https://collections.lib.utah.edu/ark:/87278/s6r5087h