Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Mayhew
1952
June 6 Gray Lodge Refuge, Sutter Co., Calif.
Nest 19 — This nest had also been
destroyed by predators.
Two broods were seen while
traveling around the refuge. One
10 of them had a ♀ + 3 young about
4 weeks old. The other had a ♀
11 and 7 young about 3 weeks old,
1953 Conaway Ranch, 2 mi. east of Woodland, Yolo Co., Calif.
May 12 A female with several young were
seen in a ditch about 200 yards away.
They were too far away for an accurate
count to be made of the brood.
When I reached the spot I was
able to flush only 2 of the brood +
the ♀. The young were about 1 week
old. I was never able to find the
remainder of the young,
June 4 Most of today was spent looking for
mallard broods on the Conaway Ranch.
A total of 5 hours was spent in the
field (9:30 A.M. & 2:30 P.M.), during which
time 32 broods were seen. This is more
broods than were seen during the
entire seasons of 1949, 1950, + 1952
combined. With the continued rain of
April + May this year, this is what
was predicted. Apparently the peak of
the hatch this year was the last
week in ~~May~~, since all but 2 of
the broods were not more than a