Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
P. DeBenedictis
1961
Stercorarius pomarinus
7 July Barrow, Alaska - went into a distraction display and
was attacked by this same jaeger, again unsuccessfully.
There were about 12 birds (1 group 8) at the head of
Faresh lake but no many other non-territorial birds
in the area from the hub to lines IETE. A nest
with a very dark and a very light egg was found near
Calidris pusilla Nest 18; the parents were only moderately
vicious, and the (egg) nest found June 29 still has 1
egg. The pair that was opposite (east of) the FAA
tower seems to have disappeared, Pairers moved
across the road to the nest found by Hamilton.
No groups of jaegers seen in the afternoon.
9 July There is a group of about 6 in Footprint lake. The
pairs, although widely spaced are somewhat denser
than I had suspected, about 17 pairs/sq mi in the
area from VSTH Creek to the gas line. We found 85
2 egg nests today and saw 3 sitting birds which
we were unable to check. One pair located
earlier in the year seems to have disappeared and
the nest could not be located. Two pairs I suspect
are replacements for birds just earlier in the year,
as they did not seem to have a nest.(I have been wrong
on this before). The reaction of the birds to approach
was variable, about 1/2 the pairs leaving us alone
and the others fighting ferociously. Should check for
black birds soon. All feeding seen today clearly involved
burrowing and the jaegers did not seem to be having
any trouble finding prey.