Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Cogswell
1950
Certhia familiaris
10
Aug. 18 S.E. end Bear Valley, 4600 ft., Placer Co., Calif. - I heard singing in edge of yellow pine - incense cedar - black oak, big leaf maple forest.
Sugar Bowl Lodge [see p.] - I heard singing.
to
Aug. 25 " " " o other "Donner Pass localities"
Still regularly found in small numbers, but few singing (one song heard on 25th).