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Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
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Transcription
Cogswell (+ 4 other listener-observers) "Journal"
1950 3)
Morning Bird Chorus Record
July 25: along N. base of Disney mtn. & NE base of Crow's Nest rix.
its former bordering on willow thickets of Cowgill meadow,
2000-7050 ft, 1.3 mi. SSW Donner Pass, Placer Co. Calif.
Time when a particular species was first heard
singing (or calling, if so stated) is recorded.
Repeated songs thereafter are assumed. all
imes are Pacific Standard:
0401 - Traill's Flycatcher
0401 1/4 - W. Wood Pewee
0403 1/2 - Lincoln's Sparrow
0405 - White-crowned Sparrow -
0409 - Robin - only 1 singing for some min.
subsequent to this time.
White-crowns now in full chorus (607)
observers moved on to new post, nearer forest
by 0413 - Hermit Thrush.
by 0520 - Chipping Sparrow
0421 - Hammond's Flycatcher - called several
times, then gave full song.
oregon
0425 - Juncos
0426 - W. Tanager - called "prit-it" only
wheeees.
0430 - Rufous Hummingbird - 7 active about,
0433 - Calliope Hummingbird - 9 active.
Observers now at 4th listening post, still cannot
hear within dense forest on slope of Crow's Nest.
0434 - Paleolated warbler - 1 called in willows
0438 - House Wren - " "
0443 - " " - calling & another one giving
subdued song.