Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
here, if not against the rules of territoriality.
June 23rd. At 7:30 A.M. as I entered the glade, all three young birds
came running out of the bushes to me. One of them was so hungry it
was almost fierce about it--No.1 I think. It struck the soft food off
of the spatula repeatedly, but, this time, ate it, and as I withdrew
The spatula
it, followed it up trying to break it to pieces with its bill in order,
it seemed to me this time, to eat it. It ate soft food from the dish
with great eagerness and needed no explanation of the desirability
of worms as an article of diet. The two others were more shy, but
all three joined in eating at the dish and in taking worms. While
they scramble competitively for worms tossed to them, there is a
curious trick they have of offering them to each other, the offer
sometimes, but not always, being accepted with good grace. After
this feeding period they tore about the bushes after each other for
some minutes.
11:50 A.M. At about 11:20 two of the young thrashers were lying in
the sun about 8 feet from me in the glade and about 4 feet from each
other, with their bills open and dozing at intervals. One of them
began practicing his undersong and kept it up for 5 or 10 minutes. It
fair
is improving and, while very low in volume, is good in quality and
definitely thrasher music. Greenie suddenly appeared like a whirlwind
think
and alternated sham attacks (as I now know them^) on the two birds.
to be
They defended themselves with vigor and stood their ground, each bird,
while the other was being attacked, maintained a defiant attitude,
crouched low to the ground with bill open. Some of Greenie's rushes
were from as far off as ten feet, but I am certain that he did not
strike either bird and he allowed himself to be repulsed every time.
I tossed a worm or two into the arena occasionally to note the effect
on the combatants; hostilities were immediately suspended each time
always
and all of them rushed for the worm, Greenie^getting it and eating it