Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Holvars, R.
1962
Erebia ferruginea
11 June Barrow, Alaska
In flight, The birds superficially
resemble Red Pollardipes - due to
dark red underparts + silver white
wing lining. - A course shape, posture,
behaviour are radically different.
No wing flushing - see from
life bird.
12 June The pair was located at 10:20 & was watched
for an hour or so. The bird would feed -
usually within 50' of the other - then M. S. would
make his way toward M. F. & This would
end in a courtship display (see below). As
he would feed - The white call was
given + frequent trillo-sequences - given
part or in their entirety
Tchuk, Tchuk-Tchuk - Whia-ja, whia-ja, whia-ja, whia-ja,
whia-ja - jeerēpa - where
-- -- -- eeeee - jeerēpa - whenever
This is the entire sequence - 2 to 3 introductory -
stage notes - 3-6 trilly notes - a sharp,
loud, musical jeerēpa (whether of earlier
notes) & then the cubine was given.
This entire sequence is given on the ground or