Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Stercorarius longicaudus
5 June Meade River Coal Mine, 157°25'N, 70°29'N, Alaska
One or two other seen flying, and present in
the area most of the day.
6 June Two birds near the Plannigan body again, today
and 4f and a 2nd year bird in the village eating
garbage. They are really neat, waddle like
ducks. The calls includes a metallic "plip plip"
and a toy-siren-like "wreayyyy reayyy reayyy",
usually given in flight and often preceded by the
"plip plip" call. Upright posture on the ground,
but not aggressive behaviour in the air. No wing
flapping. Can't tell them with #9 shot. Birds
soaring over the area most of the day, occa-
sionally turning after passing shrubrid but never
attacking them.
7 June Adults conspicuous locally, especially along
the Meade River near the village. Only adults
seen. Watched one hovering like a kestrel over the
slope behind camp.
8 June Fewer in #8. One seen. Parasitic Jaegers near
the village, this attack begun by adults and latter a
2nd bird joined it. Noisier as usual. All adults.
9 June Several adults seen in the village and over
the pools on the Meade. Some aerial, intra-
specific chasing, a call "Kyow" rather like but
high-pitched parasitic notes from one. Don't seem
to be bothering terns. One seen at an old Plannigan
kill. Little activity in the evening.