Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
117
Anna's Hummingbird
R.E. Johnson
1967
March 4 Strawberry Canyon, Alameda Co., Calif.
Sunny, warm, south facing oak-grassland (cont.)
No flowers anywhere near defended area. A few
poppies were seen 1/2 mile away. Hummer would hover
& move about among limbs of oak, coyote bush, & poison oak
as if looking for insects, but no feeding was observed.
It perched several times within 5 ft feet of our
Zoo107 party of 8, usually it faced away from us.
It was seen to wipe its bill on a branch, & to preen
its Rt. wing. The hummer also used the afore
mentioned perch next to the taller poison oak on
two more occasions indicating a definite preference
for that perch & apparent aversion to poison oak.
A scrub jay lit on another of the hummers
favorite perches while the hummer was on it.
The hummer left immediately, flying to a new
perch 20 ft. away and instantly began
singing (had been silent previously). Perches are
located above surrounding vegetation & range from
6 to 16 ft. above the ground.