Publication Date:
2011-02-23
Description:
Hudgens et al. (1) raise two issues with our interpretation of past bald eagle diets on the Channel Islands (CI). First, they provide an alternative explanation for the terrestrial isotopic signatures of Pleistocene bald eagles from the CI, suggesting that they regularly fed on pygmy mammoth carrion (1). Although this explanation is plausible, it is not more parsimonious than the one that we provided (2). Movement data of reintroduced bald eagles show evidence of dispersal from the CI to the mainland, and in some cases, individuals return to the islands after using inland habitats across western North America (3). Such...
Keywords:
Letters
Print ISSN:
0027-8424
Electronic ISSN:
1091-6490
Topics:
Biology
,
Medicine
,
Natural Sciences in General
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