Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Fulica americana -106-
Apr28 Jewel Lake Contra Costa Co, Calif. -
white patch that nearly cover the breast -
leaving a narrow
thrusly
black mid-eye
But still
no sign of white on its
head - just the white plumes, which are
also apparent on its much smaller-
dark headed brother. - The bills on
the 3 yng grade from brightest reddish
on the smallest to palest orange on
the partly white headed bird - all of them
seem to have black tips on their bills and
the deep red base - it's the area between
the nases and the tip that changes most
at this stage. 8:15 - 2 yng are at N26
-new where the mallards must be-
and 13 w/1 yng is at N20. - 8:20
a white headed yng with a white
breast having only the faintest black
median stripe it moving E along the
dam at L27. The yng cost pictured
above not only has a black stripe thru
the white but also has one down
the breast.
- Lake Temescal, Alameda Co, Calif - Watched
the pair and brood between the rocks
and the E shore - once a immature
with light gray breast a had routed
about 6 immature mallards out of
the area around the rotto - and
later the 3 went to work, trying
to clear about a dozen mallards
out - he then dived for some of the large
grrowing on the lake bottom. 4 birds we