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Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Moult.
Archies crest is now thinner and the back of his neck the
skin may now be seen through the feathers.
Beginning yesterday, Terry began to shed feathers more rapidly
than Archie, sometimes, when preening, 3 or 4 feathers floating off
at once.
Neither bird has moulted any more rectrices than the two
middle ones on top, but are still occasionally losing a tail covert
feather. The moult seems to have begun there.
At the present time feathers are being lost from the head, neck,
breasts, sides, flanks, backs and rumps, i.e.: from practically the
whole body, in addition. (Also wing coverts).
No flight feathers seem to be missing from the wings, unless
one that I found several weeks ago came from one of these birds.
As exemplified by these birds: Birds do pull out feathers with
their hills while moulting. (Ref., Rhody pulling out tail feather
last year).(Also thrashers).
Food (Fruit).
I have repeatedly tried both of these birds with fruits of
all available kinds and they have been indifferent to all of them.
Yesterday, however, I found that they really appeared to like the
fruit of that firethorn sold here under the name of Pyracantha
crenulata , even running to me to take it. Oddly enough there
is one of them blazing in their cage and they make no effort to get
the fruit themselves--another illustration of the willingness of
birds to try anything offered them although it may have been con-
sistently passed over by them before having had their attention di-
rected to it.
It is also worth noting that, although this bush is brilliantly red with fruit, they show no fear of it. Perhaps because the
bush is a familiar, not-moving object and the change to red has been
g gradual.
Food (Mice)
Archie remains fonder of mice than T, yet both are becoming
more dependent upon the supply of butcher's meat and not infrequent-
ly reject mice, even the small live ones.
Feeding time.
Food is most actively sought and eaten in the afternoon, prin-
cipally just before Bedtime, though they are chasing flies, etc. a
good part of the time.
Reaction to voices.
"A" now tamer.
They are becoming less disturbed by childrens' voices in the
distance and while they still listen to them keenly and are made
restless, they are not now panic-stricken.
Archie is now the one that seems to like human company most,
and is, at the same time, less restless.
Thrashers
Song
Early morning song continues with occasional full song as well
as sub-song at irregular intervals throughout the day. When B is
heard in full song it usually means that he is exchanging it with
one or more distant thrashers, at the present time.
"Conventions"
None observed during this period.
Moult.
All seen are in the moult, but Brownie seems to be about fin-
ished. He is unbelievably sleek in contrast with his late state.
I am unable to detect the presence of defective feathers in his
left wing any longer. After several moults this trouble seems to
have been overcome.
B's wing.
Nesting (?)
No twig-carrying has been observed since the last nest, and
there are no obvious signs of any intention to build again this
year, unless his calling Nova (?) to the dormitory tree this morning
may be construed as diagnostic.
September 16th.