presumed Wood Thrush nocturnal flight calls
Fig.4. Alabama April 20, 1990 (WRE).
Fig.5. Alabama October 9, 1989 (WRE).
Nocturnal flight call sequences:
1. New York September 12, 1992 (WRE). Longer calls.
2. Alabama October 9.1989 (WRE). Shorter calls.