Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Cogswell
1948
Larus californicus
Nov. 3. University of Calif., Berkeley, Alameda C., Calif.
17:45 - During sunny period after the rains
of yesterday and this morning there must
have been a crop of insects of some kind
come out on the lawns. About 8 gulls
of this species were walking rapidly across
the steep lawn N. of West Entrance and
making sudden lunges to one side or
the other after the insects (?) in the grass.
Nov. 4 - 07:50 - a similar group foraging similarly
just inside West Entrance.
[The attraction for these birds later found to be
probably earthworms].