Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
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Transcription
1965 Bill Arvey Journal
July 24 1002-4- one young begs, flapping, le waving bill in short sideways movements at parents mouth, other nestlings preen.
The 2 offshore fishing flocks observed upon arrival have now completely disbanded. There were 2 flocks, densely aggregated w/ ~ 25-30 birds in each flock. Manner of fishing and species, was thus not observed, but believe them to be [illegible] Pelagics.
1010- dead nest- adult arrives here, may or may not be their parent.
Upon arrival at site, a raven and turkey Vulture were frightened from the area, flew up calling. Perhaps they had a part in killing those young.
1014 - 4- a young very active - begging.
1017- 1- an egg seen beneath adult, not in effective brooding position.
1018-6- one parent arrives, the 2 adults briefly weave heads & necks together, the guarding parent then leaves after opening mouth and uttering a on note, deep call.
1021-6- newly arrived adult opening mouth, cleaning neck, (respiratory mov'ts) young start becoming active, beg.
1022-3- nestlings getting active, begging, parent jumps a short distance out of nest.
1023 -6- adult feeds young, head disappears into queue?
1025-4- adult feeds a young, no parent had arrived so had had this food available for some time prior to feeding.