Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Howell, T.R.
1948
Sphyrapicus varius daggetti
8mi. N. and 13mi. W. of Canby, 4700 ft. Modoc Co., Calif.
May 22- The day dawned completely clear and
not very cold - at least above 32° F. I
spent from 8:00 to 11:00 (both A.M.) in the same
place described previously in this species account.
I located one sapsucker by its scream (it is too
loud to be just a "note"), and saw it hitch up to
the top of a dead tree and then fly off.
Shortly afterward I heard and saw one
drumming on a small branch in the top of
another dead tree. [The drumming goes
essentially like this: B-r-r-r-r-rap-rap, rap-
r-ap-rap. There is some variation, of course,
but unless otherwise noted, "drumming" will
refer to this or a very similar sound.] This
drumming was repeated once or twice and
then was answered by another bird in a
dead tree about 20 yds away. The
drumming and replying went on several
times, and then a third sapsucker screamed
from about 50-75 yds away. One of the
birds I was watching flew off, and was
followed by the other. Then drumming
recommenced about 100 yds away. When
I caught sight of them again, all three
birds were together and went off chasing
each other about through the trees, screaming
intermittently. Once I got a glimpse of the
three in a dead tree; one was perched
lengthwise on a limb, and was bobbing