Alaska species accounts, part 1, v4220
Page 375
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
Holmes,R 1963 C. canatus 14 June Opotruk Creek, Cape Thompson, Alaska displays were heard from the bird very irregularly. Each time - from different direction - so that he seemed to be flying long distances (undetected by us for the most part) - at least half to one quarter of a mile. No other birds were seen this morning. On one flight - when the bird flew down the steep slope - he was flying rapidly & given the song at the same time - so that it is not given for a bird circling, I mean. Actually, mostly the songs heard seemed to have come from birds in swift flight - low over the ground. On 2 or 3 occasions, the birds flew several hundred feet off the ground, with a slower beat as they swept to the left, then swiftly off - out of sight. The song was heard from the bird down the left flight. [Summary] flight display - low & slow - repeated beats - wing sweeps - wing beats - low above the ground - a slower warp - but no hovering - a general warp as it appears, etc. - song not given.