Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
K Dillon
1951
Parus atricristatus
Apr 13 Sabin's Ranch, 5 mi N Kerrville, Kerr Co., Texas
the same dead liversake from in the middle of the juniper clump - (I had to climb 15 ft after both birds).
I was impressed with the actions of this male as contrasted
to those of the bird taken on the opposite slope. This ♂
sang infrequently, only in answer to other ♂♂ as a rule -
otherwise he was silent and not especially active.
The quarrel seemed to be with a pair of chickadees
possibly over a nest site -
No further song upstream - I started for them at 10:35
and soon heard song peer - - Then further over
petu or petta - -. The singer downstream SW (at N
end of clearing) became silent but bird to S (N of tributary)
sang on. I sat down E of where he was in juniper-oak
at 10:40 ek ek of thrasher simultaneously nears to
me - his mate?
I worked W from stocktrail & then S toward tributary. At 10:45 :
thrasher commenced call there are see yet or exceedingly
rapid as it hopped about in several leafless oaks in succession
(I knelt in open 50 ft away all this while) no answering calls
At 10:49 bird flew to liversake 40 ft NW called once then
sit sit then hammering ensued (rather tooq) than the
call resumed. There were continued for several minutes - At
10:49 I started S & crossed tributary and a minute later, calls
changed to song "cheer cheer cheer - --" No answer from
S. Song continued steadily as I walked S at 11:03
No activity in oaks S of creek so I walked S into clearing,