Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
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Transcription
Holmes, R.
1960
Erolia fuscicollis
2 July Qkroavike, Alaska
in alpina, in that during courtship
the 8 often class the 9 for
great distances. In fuscicollis
where these birds are frequently
seen, it seems possible that there
may be a sibling 1 & 4, so
that other males are after
the 9 that is being courted. This is
also confirmed, apparently, at the
beach & gas line ridges (see Dikbhai
Field Notes). The pony-gee call
when it is heard in chorus
may be given only for the 9. I have
not been able to determine yet,
if this is given toward other 8's.
It is heard during classes, but
here again the lack of visible
sexual dimorphism prevents obtaining
information on this point. Sometimes an
aerial display associated with
a "zeree, pony zee..." - instead
zree....
Once in the late afternoon The
pair (#1) was seen together. The 8
was in his ground display position.
Following before the 9. Suddenly
he tried to mount her, but she