Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
K Dixon
1951
Phaeothicus melanocphalus
May 23 Strawberry Canyon
from trunkward. After a few seconds he emerged on E side of bough and he + mate disappeared. I had given call greed intermittently while I "inspected" nest.
At 11:00 adults were not around & I inspected nest. It was in periphery of bough, well screened by foliage; from height ~ 9ft above ground beneath nest (bankrose to N of tree although not so that I could see into nest). By pulling branch downward I could see inside. There was one nestling inside, blood oozing from right side of head anterior to eye and from left "wrist". Nestling was dead; its eyes were still closed and it had only down feathers. A few black dots indicated some of the feather tracts which were not down-covered.
During the first outburst of calls by the grosbeaks I saw a Song Sparrow approach the scene in herbs NE of nest oak. Later I saw a Song Sparrow in near tree above the grosbeaks while jay was over nest. The sparrow was the only small bird I could see attracted by the incident although the cries of the parent grosbeaks may serve to evoke "mobbing" of predators.