Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
not heard from a thrasher before. One of them, especially melo-
dious, was strongly reminiscent of the song of the bird sold here
under the name of "Japanese, or Peking, nightingale, or robin".
( A babbler: Liothrix luteus, Encyc. Brit. (?) ).
Familiarities of
young thrashers
About 10:45 I was working in the cage; the young thrashers
interfering with every movement, inspecting and pecking at screws
as they were being driven in, thrusting their beaks into the loops
of screw-eyes as I was twisting them into place and reaching for
flies that buzzed about my ears. They prodded at the pliers in
my hand and hammered the back of my neck. They tapped the top of
a shelf even while I was driving nails in the bracket holding it
in place.
Behavior of this kind is typical of every young bird with
which I have become intimately acquainted. Amongst them are number-
ed: the Blackheaded Grosbeaks ('Dum and 'Dee); the Bullock Oriole
(Orrie); the Road-runners (Archie and Terry); and now the
California Thrashers (Okii and Chiisai).
Rhody now (11 A.M.) visited his dish for meat, but again,
deferred putting his ideas into full execution on account of the
yellow-jackets. He therefore was quite ready to surrender when
I came out of the cage and trot along beside me to the shop-yard.
The anticipated mouse was put to strictly utilitarian service: no
tail-wagging, tail-wagging. This business finished, Rhody
retired to his "optimum-light-and-shade" acacia to sit on his
favorite branch 6 feet above the ground. (Acacia latifolia or
longifolia, depending upon the nurseryman from whom it is bought!)
Incidentally, the hard, black seeds of this acacia are attractive
to the Blackheaded Grosbeak.
August 9th.
Uncoordinated nesting activity continued sporadically on
the part of the young thrashers, Chiisai being the more persistent.
In some way I seem to form part of the picture in his mind.
Thus when a rootlet, fibre or twig is being carried about aimlessly,
it may often be brought to me, and if I then go into the inner
cage and stand by the "nest", Chiisai (and sometimes Okii) will
then follow, climb up me, jump to the nest and there place it more
or less carefully and accurately. This happened twice today.
Chiisai is now much shabbier than Okii; covered with "blue"
spots and showing numerous pin-feathers, especially about the wing
coverts. There are bald patches on head and neck.
Rhody ran true to recent form: No nesting activity; no dis-
play on being given a mouse; not even sitting in nests. (Perhaps
the statement as to no nesting activity should be qualified, as
he does occasionally pick up bunches of pine needles and carry them
for a time with no definite objective in sight.
August 10th.
Little change, although O and C gave less attention to their
nest. What little work was done on it seemed to be of a negative
sort, as the structure is now stripped down almost to the original
artificial foundation placed there by me.
Chiisai obliged with one of his rare digging songs.