AN ADULT MALE BLACKPOLL WARBLER IN FEMALE-LIKE PLUMAGE

Christopher C. Rimmer; James R. Tietz

doi:10.1648/0273-8570-72.3.365

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Christopher C. Rimmer,¹ James R. Tietz¹

¹Vermont Institute of Natural Science, 27023 Church Hill Road, Woodstock, Vermont 05091 USA

Abstract

We describe a breeding male Blackpoll Warbler (Dendroica striata) in aberrant female-like plumage captured on Mt. Mansfield, Vermont, in 1998. The bird had been banded the previous summer in typical alternate-male plumage. This appears to represent the first documentation of a wild adult male bird in female-like alternate plumage. We suspect that the abnormal plumage reported here was due to hormonal influences on pigmentation. The bird's between-year change in appearance appeared to have no effect on its reproductive behavior.

Citation Download Citation

Christopher C. Rimmer and James R. Tietz "AN ADULT MALE BLACKPOLL WARBLER IN FEMALE-LIKE PLUMAGE," Journal of Field Ornithology 72(3), 365-368, (1 July 2001). https://doi.org/10.1648/0273-8570-72.3.365

Received: 14 December 1999; Accepted: 1 November 2000; Published: 1 July 2001