Field notes, v1383
Page 525
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
Bulfo cornuc June 29 Tioga Pass study area, 9900 ft., Mono Co., Calif. Photographed study area 3:15 p.m. Voigtlender 4x5 camera Blitz-X #1 1/200 at F20 facing N.E. down study area from point 75 yards from station. #2 of study pool (same exposure) #3 facing NW across study pond. 1/100th F=24. Tremendous amount of snow for this date in the season I estimate 4/5 of study area surface has remaining snow cover, on N-facing ridge drifts are to 8-10 feet in depth as revealed by streams cut faces. Study pond has snow broke along E edge but mostly free of snow. I heard out Bulfo both calling 3:30 P.M. (D.S.T.) but no heavy crowsing, sky 2/4 clear with some filmy clouds to east. Bright sun, gale winds up to 30 m.p.h. gusts. Latter makes it difficult to hear amphibian calls. 2 adult males on bare fairly dry ground lee side of change B. albiculus albiruncia 60 yards SW of weather station. Air temp. 14.50C. 1" above ground clearer of we took 15.80C at 4:46 P.M. Both males - no toes clipped. 3rd adult male found to feed from other two. Apparently basking in full sunlight (sun at 30° angle horizon) clearer not gotten since he moved away under a log. Ridge here with pines is an "island" situation between fields of snow. Hibernation site under logs (?)