Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
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Transcription
Childs
1957
Stercorarius parasiticus
June 15 Pitmegea River, Cape Sabine, Alaska.
Seen, one a dark phase.
June 17 Two dark phase birds feeding or nest
scraps at edge of bar. I do not recall
ever seeing a pair of dark phase birds
together before.
June 18 See S. longicandus
22 June The jaeger picture changes from day to day,
No pomarins seen for several days. Parasiticus
wanders along river and over marshes
but does not appear to be settling. A few
long tails may be territorial.
27 June Saw a pair of dark phase birds. Not many of
them left around here now.
5 July Only an occasional bird seen now. Just
one today.
9 July Regular at garbage during bad weather.
16 July This species is common along the river near
camp attracted by our garbage. I don't
believe they go much farther up the
river. Most of them are dark phase
birds but there is a great variation in
intensity of color, some looking like crow and
others quite light. They do not come as
close to the tent as longicandus.
19 July Cape H. Pitmegea River, near Cape Sabine, Alaska
a few scattered individuals passing thru
the area.