Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Fulica Americana -19-
May 1 Jewel Lake, Tilden Park, Contra Costa Co. Calif.
tails while the ♂ defends the territory. Later the ♀ left the area,
leaving the ♂ alone with the brood
scattered all over the area on the
north side of the island.
May 2- same locality - Only 7 eggs in nest C12.13
#4 piped, 9 piped, 6, 10, 2, 1,*3 well piped. Other
young heard in area 5:30 pm. Both parents
were close by, giving the same "pubk"
and "poonk" as the other pair. The male
churned on two occasions. - Earlier, at
4:15 p.m. - the male from the north end
#4 was near. (pair from C12.13 were out in
open water with 2 downy young at 5:40 p.m.)
H12, when the male from C12.13 came
splattering across the water, driving him
north to near H15. The ♀ from C12.13 was
close behind. On H15 all three birds
spread their under tail coverts and both
males arched wings in very high position,
spreading and giving paired display. The
♀ soon left the fracas, but both ♂'s hung
around a moment. Then both preened &
C12♂ returned towards his area, while
C26♂ moved along edge of cattails diving
& at H17, preening again, then heading
through open water towards F26, from
there I lost track of him. Later, I
found a fresh nest platform at C25.19.
Didn't see or hear ♀ or brood from C26.6.
The fresh nest plat form was not
defended, it has a number of green-
cattails broken down to it, made