Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
ters grown. Their wing coverts seem to be finished and their tail
coverts are making a good showing, but their body feathers are rough-
er than ever. They seem to have lost few, if any, of the flight
feathers in their wings due to the moult, although there has been a
gap or two in them for some time, possibly due to accident.
August 21st.
9:00 A.M. At 6:25 A.M. thrasher full song was heard to the
west from a clump of oak 40 or 50 feet from my bed-room window. A
similar song was heard at the same on the side toward the oval lawn.
They were similar in character, but differed in detail--no more,
however, than the song of any one individual differs from time to time.
For a time the songs seemed to answer each other. (Snooty is outside
the window on the terrace picking up grains of corn--a new location
and a new performance for him. He sees me through the window--9:05--
drops it
picks up a fuchsia fruit with a long stem and runs off.) (9:10--
back again --off again). Then one of the birds which had just been
seen on the lawn was seen to join the other--or go to where it was
singing--then there was a duet which sometimes consisted of full song
by both, undersong by both, by one, etc. in various combinations, also,
at times, responsive. Throughout at intervals the singing was punctuated
rhythmically by two bell-like notes, the first pitched at about the
the third C above middle C and the second at the G next lower. [illegible]
As near as I can write them, they were "Teen--tawn." Rising in-
flection on the first, which carried the accent, falling on the last.
It sounded as if one of the birds only was doing the "bell-ringing",
though I doubt if such was the case. The quality of the notes was
"glassy" in the first and "husky"in the second. This is an entirely
new phrase in thrasher song at this place. Also new was the introduction
of intervals of the "dee" portion of the kildeer's call. This
corresponded both in pitch and quality of tone with the kildeer's