Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
12W6/8
1964
Aimophila cassini
July 1 Welder Wildlife Foundation, San Patricio Co., Texas
there perch songs - [illegible] (30) until 0726
have bird singing to E + W. sound as if several territories away + adjacent birds in both direction. my bird initially facing W then turned E for 4 songs then back to W. Songs given from bare part of 3-4' high blackberry. Branches 18-15° above horizontal
with few leaves.
Wind - 10+ mph, + gusty.
0720 - 0725 - 12 songs in 5 min. 2.4/min. also pausing between songs
# 0 perch [illegible] = 12.
0724 - flies silently to perch #3. where began singing again from perch.
0726 - disappeared - probably down to ground - silent.
0736 - loud bird singing to W. + one to E. both quiet.
0737 - flight song to perch #4. then perch songs-[illegible]
singing from dead stalk n 3' tall. Stalk at ~ 60° to horizontal
where bird sitting facing to SW.
0739.5 - flight song to ? W where bird disappears near edge of
grazing area + quiet.
0750 - #2, gave one perch song + then quiet.
0757 - bird #2 (#1?) flew to W 20 ± yds. giving short flight song.
0802. bird flight song from 70-80yds W of #1 perch to 30+ yards W.
threw dropped into grass.
0812 - can hear chirping to S of me.
0817 - birds 2, 3 - singing
0830-0850 left area to talk to Dick - my shotgun is broken.
0858-0859 - bird #2 sang. no sight of or sound from bird #1,