Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Petelka
1943
Empidonax hammondi
June 19 Hayfork Bally, Trinity Co., Calif.
An Empidonax flycatcher, probably
of this species, noted in dense fir forest
around 550s ft.