presumed Snow Bunting nocturnal flight calls
Fig.5. Nebraska November 4, 1996 (WRE).
Fig.6. Nebraska November 4, 1996 (WRE).
Fig.7. Nebraska November 4, 1996 (WRE).
Fig.8. Nebraska November 4, 1996 (WRE).
Fig.9. Nebraska April 16, 1997 (WRE).