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Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
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Transcription
Howell, T.R.
1948
Sphyrapicus varius daggetti
8 mi. N. and 13 mi. W. of Canby, 4700 ft., Modoc Co., Calif.
May 22 (cont'd.) courtship process. Of the
three I have under observation, one
is daggetti > nuchalis, one is typical daggetti,
and the other I am reasonably sure is
typical daggetti, but I have not seen
all three together at close enough
range to be sure. Perhaps the bird
I collected on the 20th was one of
two pairs.
At 2:00 P.M. I returned to the same spot.
About half-way there I heard a sapsucker
drumming on a tough, dried-up
dead stub which gave the drumming some
resonance. I shot at it but it flew
off, injured or not.
When I reached the favored site there
was bird A, the one with nuchalis leanings,
on the same large yellow pine stub on
which the collected sapsucker was
first observed. It hatched up to a
hole (one of at least 5) about 60
ft. off the ground, poked its head and
then most of its body in and began pecking.
This went on for a minute or so; then
the bird withdrew and began to ruffle
and preen its feathers, occasionally
scratching its ear region with one foot.
A moment later it flew away.
About 7 minutes later, a bird which