Northern Saw-whet Owl Aegolius acadicus
Flight call description No known flight call. A slightly descending "teew" note is given from perched birds during migration and on the wintering grounds.
Fig.1. Minnesota October 1987 (WRE).
Perched bird at night.
Examples
Nocturnal calling sequences:
1. Minnesota October, 1987 (WRE). Perched bird.
2. New York September 12, 1992 (WRE). Perched bird.
Behavior Nocturnal migrant. The "teew" call is given by birds in as they move through woodlands during nocturnal migration. These calls seem to be given while birds are perched but may also rarely be given in short flight.