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Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
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Transcription
Howell, T.A.
1949
S.v. daggetti
133
Crowder Flat, 5200 ft., 38 mi. NNW of Alturas, Modoc Co., Calif.
June 26 (cont'd) 10:53 - dzn from NE, 2 looks or feeds, to branch,
d. out to W; dzn sits, then to thicket. No squks. 10:56-
n. from E, 2 looks, 1 feed, off to N. He perched x-wise on branch
before going to nest. 10:57.5 - dzn from thicket, 3 looks, 1 feed,
pause, off to NE. 10:58 - n. from way NE, 1 look, 1 feed, to branch,
whets bill, off to E at least 100 yds 11:00 - I leave. It is still
chilly in the shade and when the wind blows.
This is the first time I have seen d. go to the nest, feed,
and leave without going in. The other two do this fairly
often. Dzn looks pale on the throat, now that some
wear has occurred; dzn must be a ?, I think. There
seems to be no coordination in feeding at # 7: sometimes
they come and go separately, sometimes all 3 arrive at
once. This seems true of the other nests too, but with
3 birds it is more evident. Noted for the first time
was the occasional difficulty of d. and n. in
getting out, and d's action of picking or poking at the
inner rim of the nest hole. Possibly the latter is actually
poking at the young, in which case both actions are a
result of a crowded nest, which is probable. Nevertheless,
d. and n. were both in at the same time once, and they
seem to feed young while another parent is on the nest.
12:50 - at # 1 - from N, 1 feed, to W. 12:52 - from W, 1 feed, to W.
12:53 - same, but to N. 12:55 - same as 12:52. N'd has to put his head half
to all in - the young do not put their heads out as they did yesterday.
12:57 - same 12:59 - same. 1:02 same. [I have shifted so that I now face
the nest., I can see the young stirring quite plainly, and hear
their beaks clapping], 1:04 - same 1:05 - same, with lurge. 1:16-
long wait between feedings - young are putting their heads