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Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
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Transcription
1312
At 10 A.M. (Temp. 50, sunny, light breeze from the north)
Rhody in his roost.
At 10:40, ditto.
At 11:20 he was not to be found in his roost or at his post.
He was not in his other tree in the interior of the west lot, but
when I came out of the brush after a search, there he was at his
post sunning himself.
Temp. in Clearing vs. in the court.
At this time I found the temperature in the court (in the shade
of an oak) 55. A thermometer previously placed in the shade
at the fence on the west side of the clearing showed 64. This is
about the difference to be expected and probably has much to do
with Rhody's choice of that general neighborhood to loaf in at this
time of the year.
Motion picture of R taking mouse from hand.
I know arranged a motion picture camera set-up in the Clearing,
with remote control, so as to get Rhody taking food from hand.
When I was ready I called him from his post and he came readily,
over the fence and to the selected area. He took a mouse
but went out of the field of view with it, so I did not get that
part. (12:30 P.M.) (Temp. in court 58, in Clearing 67).
Temperatures: Court vs. Clearing.
At 1:30 Rhody had retired to his present "day-time tree" in
the interior of the west lot. I wonder how many times he has
been there when I have been unable to find him.
His roosting time was not observed.
December 13th. (Sunrise 7:16, sunset 4:51).(Min. in night in court
45 ).+2°
Rhody was observed in his roost at about 9:30. He was about
2 feet from his preferred location, close to his house, head
toward it and almost at the eaves and a little higher.
At 10:30 he was exactly in the same position.(Temp. in court
54, at Clearing 61).
At about 11 he had not moved at all.
At 12 he was in exactly the position and pose.
The same at 12:30, 1:00, 1:30, 2:00, 2:30, 3:00, 3:30. At 3:30
I went up to have a look at him. I showed him mice and meat and
talked to him. He seemed unaware of my presence and moved not at
all. He seemed almost frozen and not entirely relaxed. An accipiter had been seen entering the trees about 50 yards from at about 3 P.M., and not coming out again.
I stayed with Rhody until 4:05, but there was no change
whatever in position or pose during the 35 minutes.
At 4:45 he had shifted about 2 feet to his preferred roost and
seemed fully relaxed.
While the evidence is not complete and, therefore, inconclusive
it looks very much as if he had not left his roost at all.
The day was cloudy for the most part and the sun was never at
strong. It was not really cold anywhere. There was no wind at
all. I looked for him many times at or near his post at times other
than those recorded, without finding him there. There was little
chance for him to sun his back if he had wanted to do so. It is
highly improbable that, if he had left his roost for a time, he
would have returned to exactly the same unusual location and post-
ure.
December 14th. (Sunrise 7:17, sunset 4:52, minimum during night 45
in court).
Deficient rainfall. The rainfall to date is now less than one seventh of the
normal.