Alaska species accounts, part 3, v4222
Page 319
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
Holmes, R. 1963 C. alpina 4 2 june Barrow, Alaska In aerial display, bird here as rapidly beating wings, giving churring or crower note - then breaks with the loud, rising, descending - in-potd hill & u-drag so, Then loses altitude, then when crown resumes, he angles up & gains altitude to about 50' - The pulse chops, etc... When beating wings are held near the ventral for about one second. In one case, two 8" - well (fled) about 3i years - one studied tool flight - (aph 5") - sit wing, sliding into area of another & giving, The loud call - The tool flight In second case, trailing seemed the main call given by the appear. 3 june Only bird seen along this part 1 wolves were 2 that were chasing at the mount wolves club - They flew off to the south along the bluff & did not return to first area - is nomadic. These note was an irregular sharp creases - The loud field where became abrupt up-pitch while the birds were in flight. A flock (6-8) seen halfway to Ooligah (1km (weld)) + at the junction/