Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
PM Johnston
1948 Raven
21 July Petersburg Alaska
Ame's Fish Farm, Petersburg Creek
A conifer near the fish house
is a favorite spot for ravens
to perch. Today two were per-
ched on the top of the tree
both rehearsing their repertoire
of sounds. On other days
there has been only one. There
does not seem to be any
significance attached to
their "singing". They make these
sounds while flying as well
as when perched. They alight
in this lone tree more than
others because it affords an
easy place for them to land
on. One is just as likely to
hear them singing anywhere
in the wood as here. They
have been singing in this fashion
ever since I came in April.
Perhaps this singing is merely
the expression of an intrinsic
behavior pattern. Perhaps their
singing behavior is compara-
able to the dropping behavior
of Cal Jays or Water Owls.