Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Calidris albes
14 June Barrow, Alaska -
The Sanderlings seems to be at it this year
again, in the Barrow Area. 3 birds flew up
from a grassy area about 1/2 way out; I soon
disappeared, went the other two were involved in
a long fight, which began as a low chase over
the ground about 3 feet up. The pursuing
bird called "tsoiq tsioig tsioig....", a low barely
audible (from 20 feet) call. The birds landed
and one went into a pronounced hunched
like the Semipale. I saw on the Cenway prof. at
Pleasle River, and would alternate chase with
two jump on the 2nd bird,
which seemed to be fighting birds. The object
of contact seemed to be to jump on the back of
the opponent and grab it by the nape, occasionally
pecking at the opponent's head. When one
bird had had enough, it flew off (after 3-5 minutes
of fighting) and then came back about 2-3 minutes
later for a 2nd fight about half a minute long.
Here, a chase with the pursuing bird giving
a rapid "tsoiq" call. They landed about 50
feet apart this time, and no more fighting
was seen. The "tsoiq" call is rather semipale like,
and the fighting is
probably characteristic
of many of the calidines.
[illegible]
aggressive hunched posture