Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
This looks still more like the pattern of nest No. 5, though the
(Official max. in S.F. 81,
singing is much less. here: 78)
March 12th.
Early calls. A few early morning calls--between 6 and 8 o'clock. B on the
nest at 8:05, looking in the other direction as I arrived at the
B takes
worms without
looking at
me.
For the few minutes I was there he shifted his gaze in all
directions, not looking directly at me once, evidently not concerned
about my presence. When I handed him worms, he gobbled them, apparently
satisfied that they put in their appearance through the operation
of natural causes and that it was not necessary to trace them to a
definite source.
Worm swallowing method. He takes the worm in the tip of his bill, then opens his bill
slightly, thus leaving the worm, in effect, momentarily suspended in
free space; then thrusts his head sharply forward so that although
the worm remains where he was in the beginning, he finds himself
completely surrounded by thrasher. If, as sometimes happens, the
worm gets a grip on the bird's bill, this movement results in his
being accidentally thrown away. On such occasions, Brownie peers
down regretfully over the edge of the nest for a moment, but accepts
the loss philosophically.
Losing
worms.
11th. day of
incubation. The 11th. day of continuous incubation will be completed this
morning.
March 13th.
Early song. A little early morning calling in musical phrases; B on the nest
at 8 A.M.; worms acceptable.
About 9, as I was examining the grafts in the orchard, a plaintive:
Beer-cup, beer cup
came from outside the fence and B came running to me for more worms,
carrying the last one toward the nest 30 yards away and then changing
his mind about it.