Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
M
Marshall, 1947 VII-VIII
from accurate
double sized maps
San Pablo marsh
April 15
5:40-6:55 PM
Dusk
at 6:55 still singing
but under cover-
can't see them nor
tell direction precisely
are close to ground
South wind, clear
low tide
Mallard 11 eggs
& away feeding
egg covered with
thick layer of feathers
very warm.