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Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
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Transcription
Petelka, 1943
Tachysmetathalassina
June 12-15 Zuni SE Begum, 1650 ft., Tehama Co., Calif.
Several pairs present along the valley flat between our camp and the
main ridge to the west.
June 16-18 Zuni E Hayford, 2400 ft., Trinity Co., Calif.
Several present over the area of placer
diggings and ponds to the south of
camp. On the 18th, a family group
including 3 young was observed at the
same site.
June 25-26 / mi W Hyampom, 1200 ft., Trinity Co., Calif.
Several seen frequently over the Hyampom
flat southwest of camp in the vicinity of
the South Fork and groves of cottonwoods and
willows scattered along cobble washes.
One male was observed giving the
characteristic grating song note from a
perch atop a dead willow stub.