Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
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Transcription
Bush-tit
R.E. Johnson
1267
March 4 Strawberry Canyon, Alameda Co., Calif.
Sunny, warm, 9:20AM. Oak-grass south facing slope.
Bush-tits feed in leaf (outer canopy) layer of Coast live Oak trees. Usually make light "tut" sound as they move through trees. Usually several together is loose group so that continuous twittering emits from tree.
April 28 Tilden Regional Park, Alameda Co., Calif., near "Playfield" area.
Clear, cool, sunny, still. Pair of bush-tits building a nest 16 ft up in a Douglas Fir tree, one of several in a clump of firs (all 30-40 ft high) at roadside on a east facing brushy slope. Nest is pendant & 8 inches long and 2 1/2 inches wide. Nest is only partially completed. Pair appears at nest together at 7:00, 7:15AM I believe both members of pair actually contributed to building. They remained at the nest for 70 sec. One returned at 7:16 & again one at 7:20AM. The nest appears to be attached at the bottom & top. It appears that it hangs from 2 strands & that bottom is completed first.
Nest is made of dry thin leaf life material & light green lichen.
April 29 Tilden Regional Park, Alameda Co., Calif
7:30AM - pair return to nest twice together to build. It appeared that only one adult did the building, at least on the second visit. The bird carried no nest material & did not enter the nest.
7:45AM - 2 Bush-Tits peck & pull at edge of a loose