Lesser Scaup, Aythya affinis

Recording AV#14707. USA: North Dakota; Burke Co.; Lostwood National Wildlife Refuge (48.64, -102.39)
recorded by Pamela C. Rasmussen

Recording Characterization

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Graphic Sound Analysis
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Sonogram of recording #AV 14707
AVoCet catalog #AV14707
Audio duration (s)4.7
ID confidence and determination100%
seen well, eventually seen vocalizing though this wasn't very obvious
Other noisefrogs
Sound types presentcalls
soft gulping noises
Grade of best portionaverage
very quiet
Playback usedno

Individual Characterization

Sexboth present, female the primary or sole caller
Determined by: plumage
Determined by: plumage
Behaviorloafing on water
Group size2 pair, only one female seen calling


Recording dateMay 12, 2012
Time recorded (24h)9:50h
LocationUSA: North Dakota; Burke Co.; Lostwood National Wildlife Refuge (48.64, -102.39)
Coordinates determined by: estimate from Google Earth
Elevation (m)700
Determined by: estimate from Google Earth
Habitatprairie pothole

Additional Information

Recordist namePamela C. Rasmussen
Copyright/permissionscopyright by recordist, freely available for non-commercial use with attribution
Recording EquipmentNagra Ares BB+, Sennheiser ME-67/K6