Green-winged Teal (Anas carolinensis) [XC391480]
by Brian Henderson from Bombay Hook NWR, Smyrna, Kent County, Delaware, United States (call)
Green-winged Teal (Anas carolinensis) [XC698508]
by Paul Marvin from Toluca de Lerdo, Toluca, Estado de M\u00e9xico, Mexico (alarm call, call)
Subspecies
Although Anas crecca was split by Sangster et al. (2001) into Eurasian Teal (Anas crecca) and Green-winged Teal (Anas carolinensis) and this treatment was followed in BirdLife International (2004), AOU (1998) do not adopt this treatment and this source is now followed here.
Considered by some authors to be a subspecies of Eurasian Teal (Anas crecca).