Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Holmes,R.
1960
Nyctea scandiaca
29 June Barrow-Iknaailk, Alaska
attempt by flying over lows. The 8
performed a disturbance display several
times. Usually it consisted of he
standing along the edge of the old
hole bed or dug among the
polygons & flapping his wings
rather erratically with the wings
occasionally being held in
the horizontal plane with the tips
dropped, and the tail cocked.
Once while he was at the edge of the
marsh he assumed this position
with wings spread out and tail
cocked and head forward. In
this position he moved slowly
over the ground and as he did so
he textured back and
forth. The mouse calls
grinze during these periods of
disturbance are usually various
grunts, occasional deep hoots,
and while in the air, bill clacking
is quite common. It might also
be mentioned that this bill
clicking is also done by the young
on the nests when they are disturbed.
On the way to the wanaga is the