Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Reostorer
1941
Journal 22 #8.
2427 Channing Way, Berkeley, Alameda Co., California
December 29, 1941 (Davis Xmas census cont'd)
a Bewick's Swan. killed Marsh Wren and a Snowy
Egret. From here we went out on the levee where,
in the reeds were patches of Collemboles on many
of the puddles. The patches looked like Wolffiaella only
instead of green, they were purplish liked the
purple color which Fe2O3 sometimes assumes.
The river was high and on the ricefields to the
east of the levee was an enormous block
of waterfowl which extended the two miles
to the woodland causeway and was about
1/4 mile wide. The mass was white with Snow
Geese but there were many more dark birds,
mostly pintail present. There were 5 Least-Eared Owl's
on the marsh at this point. From here we drove
to Woodland to pick up Yellow-billed Magpie and
Cowbird and stopped at the land where the
large sugar beet refinery in woodland dumps
its waste liquors. This must be an excellent
supply of food for protozoa & invertebrates as
there are always good numbers of shorebirds there.
Most odd was a concentration of about 50
Wilson's Snipe at this point. Yellowlegs, Least
Sandpipers, and Dowitchers which were
present Thanksgiving weekend were
not seen on the census. Next we drove to
the causeway where we had a look at the