Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Belle
1934-
1/2 mi S. Byron Hot Springs, Contra Costa Co, Calif.
July 31
fog seems to be just the other
side of the Diablo Range. This area
at the edge of the foothills at the
commencement of the open flat
valley.
I'm rather disappointed at not
seeing more birds or being able
to get closer. It has been worth
while to get their reaction to strong
wind. I doubt if they are
feeding - Their flight seems as
strong as any birds under the
circumstances. I conclude that
for protection they squat down
in open fields (behind grass
possibly in depressions or behind
slight rises. For the most part
they remain quiet but a certain
restlessness is exhibited in the
movement around the field. The
getting up of one bird usually starts
the flock up. They are not silent but
utter chirps. Some evidence that
some are paired yet and perhaps
the notes are meant for their mates
gregariousness after breeding season
shown