Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
illion
1950
Euloca americana '80
Jan 26 Gray Lodge Refuge, Butte Co., Calif.
Initially concerned with territory behavior.
The frontal shields seem to be somewhat
swollen on every bird exhibiting any
real degree of territoriality. 1 instance of
paired display, no tangle tho - one later
comes from one pair came in cackling.
Two birds ganged up on a third as it
invaded in close to the center of their
territory. - These coots are generally
shy and readily fly when closely
approached. Many jump into the
air from the ground to fly away. After
they drop limply into the cat-tails,
at other times flying to water -
but seldom in a climbing flight,
usually a level or dropping flight
after initial take off. Both 2a
& notes were heard, as well as some
cackling. Birds seem paired and
on territory along the waterways,
but mostly not paired on the larger
open pools. All birds defending
territory that could be at all closely
examined possessed the swollen shield.
Jan 27 same locality - After watching
yesterday afternoon and this
morning it seems apparent that
the coots at Gray Lodge are in
the same stage of territoriality
that the birds in the Bay area
are.
Jan 28 Univ. Calif. Campus, Alameda Co., Calif.
Of the foods offered today, lettuce