Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Fulica Americana
206
Feb 23 Univ. Calif., Campus, Alameda Co., Calif.
W - was seen in a display this morning
about 7:55a.m. She climbed up on a
pile of cat-tails on the edge of the pool
and stopped on the top, lowered
her head, spread her under tail coverts
and gave a low, barely audible
"tuke, tuke, tuke" note. VBG
indicated some interest, started
over to her, but did not actually
approach her. She then moved
over against the wall under the
tree fern and repeated the
display, but again no
reciprocation was observed on
the part of any nearby males.
VBG is vigorously defending
that corner of the court against
YLB and XC, chasing them
every time they come into the
area. These both are birds
with swollen shields. So far
he has shown no aggressive
behavior towards any of the
other males that are probably
present VBG and probably X16.
Feb 24 same locality - WB displaying again
this morning, from about 7:40 to
7:48 a.m. She started on the pile
of cat-tails on the edge of the pool
and then moved over to the edge
of the building under the tree fern
where she continued. No other
bird was noticed paying any