Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
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and began probing frantically all over himself with his bill. This
is not new. He looked at the ground suspiciously, at his feet, at
me, and, as well as he could, at himself, evidently in a state of great
suspense waiting for the next stab and apparently trying to analyze
the situation in order to predetermine its position on his own topog-
Another stabraphy. When it came, up he went into the air again, followed by more
frantic probing and another period of suspense during which he froze,
with back and neck horizontal staring into vacancy. Brownie had been
B. sub-sings.
singing a fine undersong during this time, a few feet away in the
brush. I repeatedly heard the hen and the thrush, although an air
compressor and air tools which have just started work on the foundation
for a house a couple of hundred yards away, drown out nearly all other
sounds. Brownie came out and had an attack just like Greenie's.
It clearly is something biting them and I wonder if it is "The"
"The" fly? fly. Whatever it is seems to carry a good punch.
(Temp. 65).
B in nest. At 2:45 Brownie was in the nest and Greenie in the glade singing
G singing
undersong ranging from ¼ to ½, in the bushes. He finally came out
to dig in front of me and sing happily. I gave him worms provided
"Training"
Greenie.
he would jump up on to my ankle or knee for them. This he did readily,
but the force of habit is so strong that he would look for then first
Force of
habit.
on the ground. Even when I hold my hand low where he can reach into
it from the ground, he often looks on the ground under it first.
This period ended by his gathering up especially long fibres and
disappearing with them in the direction of the nest.
G gathers
fibre.
Unusually
high-pitched
song.
About 4:45 an exceedingly high-pitched thrasher full song of
short duration was heard in the direction of the glade. But for
its rhythm and phrasing it would have been scarcely recognizable
as coming from that bird. I went to the glade, both birds appeared
almost simultaneously and began talking, both keyed to that same high
pitch. I was able to effect absolute equality in the distribution