Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Remsen,
J.V.
1975
Bay-breasted Warbler
Dendroica castanea
May 13 Boulder area, Boulder Co., Colo.: 1 ♂ in willow-cottonwood grove
behind Sawhill Ponds where it was found yesterday. Black face,
chestnut crown, throat, upper breast, and sides; whitish underparts and
buffy neck patch; striped back; dark wings with two white wingbars.