call_2202.wav
In May 2006, a Swainson's thrush emits a migratory call during migratory flight NE of St Louis MO at 2202 CST. Wing sounds are audible. The bird is about 4 miles from the tracking vehicle at about 400 meter altitude.

C_0522.wav
In May 1997 a Swainson's thrush emits a migratory call during an 0522 CST local flight.

C_053022.wav
In May 1997 a perched immature Swainson's thrush makes a migratory call at 0530:22 CST; another bird (Swainson's?) calls just before the radio bird, then about 3 seconds later another Swainson's responds.

C_154804.wav, C_131243.wav, CW154756.wav
Miscellaneous Swainson's thrush migratory calls in woods.

may29_1901.wav (40MB)
1998 record of various vocalizations and many songs of Swainson's thrush in the evening before migration. Other bird vocalizations in background.

S598_001.wav (8MB)
May 1998; a Swainson's thrush with microphone transmitter. Most of the time the thrush is perched and silent while a nearby Cardinal sings. Later the thrush flies and vocalizes, the Cardinal singing gets weaker, then another flight and the Cardinal is barely audible.

S80356.mp3
Wingbeat sounds of a migrating Swainson's thrush near dawn on May 21, 1998. The bird carried a 1.3g 11-day microphone transmitter. The steam locomotive sounds are from wingbeats, the two short anomalies are vocalizations.

N000313D.mp3
Wingbeats of a bird carrying a microphone transmitter during a 1994 migratory flight.