Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
June 5
lower Colorado River, Calif (Imperial Co.)
Ground Doves, and host of Cowbirds. We looked
for Wied's G. Flycatcher + Bronzed Cowbird, but couldn't
find any. From here we went to Laguna Dam,
but found very little here. There were about
15-20 Cormorants in the Calif. Swamp, but
no trees of any sort - very few water birds here.
At West Pond, near Imperial Dam we found
an Osprey, a white plumage Barnaparte Gull,
and a nice Franklin's Gull in good [illegible]
summer plumage (throat white). We then
looked in the trees behind Imperial Dam
where we found a pair of Vermillion Flycatcher.
Both birds were silent and busily capturing
insects in a wood of 3+ young in a nest in a
low Mesquite trees. Very perched low in
the trees like mosquitoes, and picked insects from
the air or even from the ground, the preying
beat being ground level to about 5 feet up.
The nest was of small twigs, coarse in structure, placed
in the crotch of some small twigs on a 7/4