Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
R.E. Johnson
1268
Journal
No. 22 Bodie, Mono Co., Calif.
appeared 10 ft. below the lip of the shaft. It then flew out in one flight & off to the se, chirping all the while. These chirps (all birds this morning & the majority yesterday) are high pitched & not at all hoarse like the more familiar chirps so often heard in the summer.
At shaft #4 Marr saw a flock of 25+ birds around the edge of the hole as he arrived at 6:15 AM. He approached to within 100 ft & sat down.
6:20 - Another flock of 20 flew out of hole & left. Birds left immediately & left down canyon (se).
6:20-6:30 about 4 bunches of 6-10 birds each which also left immediately & most went down canyon (rather than south toward Cottonwood Canyon).
6:30-6:40 AM Another dozen or so birds leave, one at a time.
6:45 - Threw rocks down hole, no response.
Left hole.
a few birds had flown over hole (high) from north but no large flocks.
In conclusion, we didn't reach the shafts in time to catch the complete exodus of Rosy Finches. The birds probably left shafts 4 & 5 around 6 AM which is 45 min to 1 hour before sunrise for these shafts, yet it is also light enough to navigate walking the hills. The last half hour before sunrise was very bright out (like nearly full daylight).