Vesper Sparrow diurnal flight calls
Fig.2. Texas April 8, 1996 (WRE).
Bird in flight.
Fig.3. Virginia February 20, 1994 (MO).
Perched bird.
Fig.4. Virginia February 20, 1994 (MO).
Bird in short flight. Possibly the same individual as in Fig. 3.
Fig.5. Virginia February 20, 1994 (MO).
Bird in short flight. Possibly the same individual as in Fig. 3.
Fig.6. New Jersey October 30, 1997 (MO).
Perched bird.
Fig.7. Oklahoma October 24, 1995 (WRE).
Bird in flight.
Diurnal calling sequences:
1. Virginia February 20, 1994 (MO). Perched bird with one or two others flying in.
2. New Jersey October 30, 1997 (MO). Bird perched, then flying.
3. Texas November 15, 2000 (WRE). Bird in flight.