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Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
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Transcription
127
-rally a (12-cental) very grass seed bale,
alternating. NTA says genus is Vulpia.
Dec, 7-8. Put out a total of 15 cages, 11 stool, and 10 cage
traps at 2 barn E Estacion Parto morning, set for Rattlers.
Dropping everywhere. Checked at 10pm, 12 pm, and A.M.
Caught 6 Rattlers and 4 to 6 also large.
Used the NVG's from 9:45 to 1:50 and 3:45 to 5:37
(quite light by then). Rarely took more than 5 minutes
to locate another Rattler, and we saw several
encounters between individuals. Saw shrews, but no
other species of mouse. Heard harp owl.
I took Michael's .22 on the 3:45 expedition and
located numerous Rz between the fence and the RR.
Shot the first one, missed the shot 2, then the gun
jammed. When missed, they don't even run
away!
Gwen + I tried moving with a copper-wire mouse on the
end of a fishing rod. She was able to twitch one with the
wire without dropping it (several times), but the
mouse was in frenzied and she couldn't get the mouse
around its head (the rod never moved hazards). The one
that tried to move ran away just as the mouse
approached.
During the 5 hrs 36 min of NVG (including about 10 min
of flashlight) we (3 people) encountered 23 Rattlers.
Perhaps as many as 4 or 5 of these are roapate, hence
about 20 R. Much of this time was spent concentrating