Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Fulica americana
508
me 21 Lake Temescal, 42ft, Alameda Co., Calif.
Tagged Mallards got into where the food was
until it was all gone. Of the Coots, while
came over showing interest but never
got near the food. When the adults get
to the yung they feed the first one they
get to, which means the crippled one
gets a very small share of the food. The
two others both meeting their parents as
they approach. Now the ♀ is coming
down with the ♂, he picks up the
food, she takes part of it, and together
they return to the brood, still at 16-17
10:05 a.m. I seen at L2 - so he is
still on the lake and both tags still on.
There seems to be little inter-specific
antagonism in the SE area. B Mallards
were tolerated there while the SE ♂ fed
within a couple of feet of them. The
SE yung is in the all black stage, with
bright orange-red bill. It is feeding pretty
much by itself. The SE birds were bowing
and nibbling, first the ♂ bowed and then
nibbled on the bowing, then he'd bow and
she'd nibble. The SE yung is in a stage
where the wise feathers still are colored,
but all the [illegible] plumes are lost. A little
later the wise feathers fade out and then
the yung gets the hoary appearance to its
head. 10:33a.m. - just now there
was a rather severe clash at I 8.24.
Both SW and both SE birds were
in it. Apparently the ♂'s were doing
the actual fighting. The SW yung