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Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
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Transcription
Cogswell
1950
Piranga ludoviciana 1
June 17 near Sugar Bowl Lodge, 7000 ft., 1.2 mi. SSW Donner Pass,
off Placer Co., Calif. - common in conifers, even over
dep snowbanks, but few singing (on 17th).
June 19 & seen carrying West material. Songs of
males still infrequent. (snow still everywhere
in forest). Singers more numerous on 20th.
June 21 "Sugar Bowl", 7200 ft., 1.4 mi. S by W Donner Pass - about
5 seen in 2 hour walk thru forest & cleared
ski slopes, 2 singers, 1 of which males was
seen feeding a female.
June 22 6950 ft., 3/4 mi. E Soda Springs, Nevada Co., Calif.
Pair seen copulating, the ♂ interrupting his
singing & flying to ♀ (perked near him)
she quivered her wings & raised her head.
They were in the upper branches of red firs at border
of fir - lodgepole pine forest.
June 23 N side Bear Valley, 4950 ft. Nevada Co., Calif. - Several (>5)
seen & heard in immense cedars, yellow pines, & black
oaks near large grassy meadow.
June 27 Valena Cr. Camp 6600 ft. Carson Range, Washoe Co., Nev.
1 pair seen in dense Jeffrey pines, white firs,
& black cottonwoods near turbulent stream.
July 3 near Sugar Bowl Lodge [see above]. - a nest discovered
with ♀ apparently incubating. It is about 50 ft.
up & a good 6 to 8 ft. out from trunk, saddled
on a horizontal branch of a lodgepole pine just
at the point where this branch bends abruptly
upward thru about 30°, Staghorn lichen is used