Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Cogswell
1948
Journal
6
Oct.24 (cont) -- winged teal were identified were feeding
along with some coots & a few pintails.
waterfowl population present was tallied at:
Phalacrocorax auritus - 2
ardea herodias - 1
* Branta canadensis - 8+
* Anas crecca
carolinensis - 8+
* anas acuta - 1200 est.
* mareca americana - 150 est.
Aythya collaris - 2♂
Aythya affinis - 2♀
{ + 20♂♀+4 of either
in its other -- too far
to identify }
Larus glaucescens - 2 ad, 1 imm.
Larus californicus - 1000 est. { but this number
may include many
of next species
Larus delawarensis - 10+
over the hills to the NE of reservoir 3 red-tailed
hawks ganged up to dive on an immature golden
eagle (see respective sp. accounts).
Oct.24 - Berkeley Aquatic Park, Berkeley, Calif.
16:15 - 17:15 - we rented a boat & made a loop
of the main part of the lake. Complete list of
the birds recorded is entered in roll book. Out-
standing were:
Ruddy Duck - 30 est.
Herring Gull - 2+
Forster's Tern - 8