Swamp Sparrow diurnal flight calls
Fig.2. New Jersey October 18, 2001 (MO).
Perched bird.
Fig.3. Florida April 3, 1989 (WRE).
Perched bird.
Fig.4. New Jersey October 21, 2001 (MO).
Perched bird.
Fig.5. Maryland September 30, 1994 (MO).
Perched bird.
Fig.6. Maryland September 30, 1994 (MO).
Perched bird.