Field Sparrow diurnal flight calls
Fig.2. New Jersey November 23, 1997 (MO).
Same individual as Fig.1.
Fig.3. New Jersey September 17, 2001 (MO).
Perched bird.
Fig.4. Oklahoma January 1, 2002 (WRE).
Perched bird.
Fig.5. Oklahoma January 1, 2002 (WRE).
Short variant from perched bird.
Diurnal calling sequences:
1. New Jersey November 23, 1997 (MO). Perched birds with American Crow calling in the background.
2. New Jersey September 17, 2001 (MO). Perched birds with Bluebird in the background.
3. Oklahoma January 1, 2002 (WRE). Perched birds with Song Sparrow calling in the background.
4. New Jersey October 30, 2001 (MO). Perched bird.