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Isotopic (δ2Hf) evidence of “loop migration” and use of the Gulf of Maine Flyway by both western and eastern breeding populations of Blackpoll Warblers

Rebecca L. Holberton, Auteur ; Steven L. Van Wilgenburg, Auteur ; Adrienne J. Leppold, Auteur ; Keith A. Hobson, Auteur

Dans Journal of Field Ornithology (86(3) septembre 1, 2015)

Declining numbers of Blackpoll Warblers (Setophaga striata) have been documented at long-term migration monitoring sites as well as in breeding areas. However, the “loop migration” of Blackpoll Warblers makes it difficult to ascribe population c[...]

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