Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Field Notes
D. A. Bell
May 3, 1990
At Spencer Battery, Golden Gate Natl. Rec. Area,
Marin Headlands, just N. Golden Gate Bridge, Marin
Co., Calif.
10:00 AM - Met Alan Fish & Alan Harper at the bunker.
Came out myself with Joe T. Marshall. Alan Fish
said they saw all 3 eggs in nest yesterday, May 2.
We know the & laid eggs on 25, 28 & 30 March.
So the eggs should be at hatching. The falcon is on
the nest, facing out from the cliff. She kind of has the
appearance of a broody hen: very wide, flat body.
The wrists and wings almost "droop" from her body,
one can see her flank & under-cover wing coverts
peeking through her flanks to the tops of her wings.
Her breast is very wide. This at best closing
every row & then. Then she looks about at gulls,
etc. It's very foggy, often hard to see the
nest. She literally hasn't moved from
10:00 AM - 12:00 noon. At 12:00 she began picking
at the nest rim. Did this for about 5 min.
Then she sort of stood up, and tried tucking eggs
under her; Saw they were pretty far up on her
breast, she moved them further under her belly.
Saw only 2 eggs. Then she stood up & scambled
around 180°, looked cramped on the nest. Her
tail was facing out, head into cliff. I missed
the view of her nest, but think I saw
only 2 eggs. Then just after she settled in this