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Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
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Transcription
Field Notes D.A. Bell
May 6, 1990
Update on Golden Gate Peregrine Eryie:
Yesterday (may 5), David Gregorie and helpers
were at the eyrie in the afternoon. At 16:30 the
inculating ♂ came off the nest and received a
meadowlark (?) from the ♀. The ♂ went to the
eyrie to incubate. ♀ flew to cliff, ate lark,
disappeared. 10 minutes later she reappeared chasing
a bird-tailed pigeon right past the eyrie, but
did not get it. She flew back to the bridge,
then soon was off at a gull. She harassed
the gull, then chased a small passerine, catching
it, she then returned to the bridge and dos
cached her kill. Soon she was off at another
gull, this time she pounded it into the water,
(defensive screaming). Finally, at about 17:15
she went back to the eyrie to relieve the ♂
and continue incubating.
Today, May 6, while talking to David over
the phone he got another call saying that one
of the peregrine eggs had hatched! This hatched
at about 11:15 am -> approx. 37 days after
"hard" incubation had begun! WOW...