Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
FIELD NOTES
Doug Bell
April 5, 1988
well. Saw a pair of kestrels sitting atop a large snag
on the small peak to its south of goat rock. The kestrels
copulated - unusual - the ♂ did about 5 purring motions.
10:10 - the ♀ is definitely in at least partial shade in her
scrape. 10:06 - ♀ shifting on eggs again, stood up
straight, peered out, resettled. 10:42 - Male in, female
out of pothole, screaming. Both landed in snag
(⊙), on branch next to me mother. Female tugged
at prey in males foot, didn't release right away.
Female tugged food away, flew to snag (⊙) top, ate.
Small bird < jay sized? Male flew into pothole,
landed directly on scrape, ate. about 10:46. He
settled in scrape, then got up, walked to ledge,
♀ screamed couple times, pissed off hek-hek, both
birds looking up. Then male returned to sit settle on
eggs. Female flew from snag (⊙) to low trees
below (⊙), sitting in shade.
11:02 - ♂ in scrape.
April 6, 1988
08:40 - Female screaming on ledge. Flew back to pothole
& snag (⊙). Sitting atop it preening. Male in pothole (X),
on scrape. Monty Kivinen had mentioned some good pointers
on id'ing male vs females adults. Females look more
slate gray, have p"tips that tend out to protrude below the
tail, appear more scruffy, a fluffy, as they are more
advanced in molt - may also have dropped ∞*7 by now.
Males are more dark blue, appear "meaty".