Acadian Flycatcher Empidonax virescens
Flight call description An emphatic, rising "pseet" (or "wseet") is presumed to be the flight call. See Behavior.
Fig.1. New York June 8, 1990 (WRE).
"Pseet" call given from perched bird.
Fig.2. Maryland May 23, 1995 (MO).
"Pseet" call variation from perched bird. Note insect song at 2.5 kHz and vegetation reflection.
Examples
Diurnal calling sequence:
1. New York June 8, 1990 (WRE). Dawn song (includes "pseet" calls) from perched bird with Hermit Thrush, Rose-breasted Grosbeak, and Eastern Wood-Pewee singing in the background.
2. Maryland May 23, 1995 (MO). "Pseet" call variation and other calls from perched bird on the breeding grounds with Tufted Titmouse singing in the background.
Nocturnal flight song example:
1. Alabama April 24, 1990 (WRE). "Pseet-seeup" song given in nocturnal migration.
Similar species See Yellow-bellied and Vermillion Flycatchers.
Behavior Primarily a nocturnal migrant but engages in redetermined migration. Gives "pseet" call uncommonly in short diurnal flights. Not known to call in nocturnal migration but presumed to do so occasionally based on the behavior of Least Flycatcher. Documented to give song in spring nocturnal migration.