Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Pileolated Warbler
Mayhew
1947
April 19
Wildcat Canyon, Contra Costa Co, Calif.
at 9:30 A.M. one or was seen feeding in the
outermost branches of a live oak. Its song seems
to go along on an even pitch (tree-tree-tree-tree).
It usually has 5 or 6 distinct notes to each song,