Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
anks
1956
Journal
These figures are time in seconds at
which he sang Allrogs delivered from
a Willow (?) tree about 15-yds. from first
perch, 7+ from second. Allrogs lasted
about 3 seconds.
Perch 2
Perch 3
Stopped singing silent for several minutes.
Reappeared, singing in perch 1, about half
way to top of tree!
Found his mate feeding quietly on
ground between perch 1+2. She went under
tree if perch 1 when I approached. Did not see
her again. This may be a good pt. to
work on. I saw at least 2 songs. Sigs
loud, could be recorded, altho background
noise is great.
08/5+ Song Sparrow singing by bridge on
Michigan Wetland. ♂ by foot bridge
further up. ♀ stopped singing. ♂ singing by
footbridge another ♂ singing by road
bridge. Songs alternating. ♂ by foot
didge soon singing violently often. Other
male stopped. Saw one by foot bridge,
not the other. Both quiet after a few
minutes.
I squawked by foot bridge ♂ started to
sing from near wood bridge, fairly loud.