South Polar Skua, Catharacta maccormicki

Recording AV#365. Antarctica: Trinity Island, Mikkelson Harbor (-63.892, -60.786)
recorded by Pamela C. Rasmussen

Recording Characterization

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Graphic Sound Analysis
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Sonogram of recording #AV 365
AVoCet catalog #AV365
Audio duration (s)9.7
ID confidence and determinationslightly less than 100%
seen well at close quarters and photographed; one a rather pale phase and a dark phase; smallish and small-billed, lacking coarse upperparts blotches, and with white bill base patch; only one unequivocally this species
Other noisesurf
Sound types presentcall
Grade of best portionaverage
Playback usedno

Individual Characterization

Behaviorsingle note when one skua was bulldozing under another, not very aggressively
Group size3

Environment

Recording date 4 Jan 2009
Time recorded (24h)9:41h
LocationAntarctica: Trinity Island, Mikkelson Harbor (-63.892, -60.786)
Coordinates determined by: Google Earth (Mikkelson Harbor not precisely located)
Elevation (m)2
Determined by: close estimate from being there
Weathercold, windy
Habitaton gravel beach close to tide line

Additional Information

Recordist namePamela C. Rasmussen
Copyright/permissionscopyright by recordist; freely available with attribution
Recording EquipmentTelinga Pro, Edirol R09