Northern Hawk Owl, Surnia ulula

Recording AV#16776. USA: Chippewa County; 11 Mile Road, near Sault Ste. Marie (46.2, -84.21)
recorded by Pamela C. Rasmussen

Recording Characterization

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Graphic Sound Analysis
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Sonogram of recording #AV 16776
AVoCet catalog #AV16776
Audio duration (s)0.5
ID confidence and determination100%
seen well calling
Other noisebreakup
Sound types presentcall
Grade of best portionterrible
broken up but conveys the basic sound
Playback usedno

Individual Characterization

Determined by: very worn primaries contrasting with fresher rest of plumage
Behaviorhad been perched atop a tree for many minutes, after catching and eating a mouse (probably Peromyscus sp.) in three bites; eventually flew to another perch, giving two tittering calls, the first before I got the recorder on, then this one.
Group size1


Recording dateFebruary 23, 2013
Time recorded (24h)11:13h
LocationUSA: Chippewa County; 11 Mile Road, near Sault Ste. Marie (46.2, -84.21)
Coordinates determined by: estimate from Google Earth
Elevation (m)680
Determined by: estimate from Google Earth
Weathercold, overcast, breezy
Habitatedge of spruce forest

Additional Information

Recordist namePamela C. Rasmussen
Copyright/permissionscopyright by recordist, freely available for non-commercial use with attribution
Recording EquipmentNagra Ares BB+, Sennheiser ME67-K6
Other recording notesThis extremely poor recording was made with the input accidentally on max, hence the breakup. I've uploaded it despite the awful quality, because it does convey the basic sound of the call, which was a short series of high quick thin notes given in flight. Could it be that no one has ever uploaded a worse recording?