Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
LL Wolf
1964
32
Aimophila cassini
June 30 Welder Wildlife Foundation, San Patricio Co., Texas
0723 - dropped to ground from song flight to area #8. flew up from near Operatia in clumps of short mesquite. flight sang to 10 yds. farther west when dropped to ground again.
0725 - flight song to #1. where sang several perch songs then flight song to #3.
0735 - flight song to ground Wg #4. on ground for 1/2min. then flight song to #2 (onto ground) (0736). Quiet until 0739.5 when flight song back to #3.
0740 - 17 songs to 0845.
flight 11%
perch 29%
to perch #: 3,3,3,3,3,3,3,3,3,3
Twice lit & 12" down from top of perch. First time gave one perch song + second time gave 6 consecutive perch songs (only 4 recorded in 5 min. period. then back to flight songs.
direction of takeoffs in relation to direction landed on previous flight.
same [illegible] = 25
180° III = 3
90° [illegible] = 12
45° [illegible] = 17
total 57
46% 43.8%
5.3%
56%
29.8%
60.6%
0750 - flight song above #3 then fluttering flight to SW where ended in another flight song. Then flight song to ground Wg #4 then flight song back to #3.
0751 - 2nd 45° deviation recorded bird flew over to ground W of #4 this spot 90° deviation from way perched.