Green-winged Teal (Anas carolinensis) [XC611979]
by William Whitehead from Whitewater Draw WA, near McNeal, Cochise Co, Arizona, United States (flight call)
Green-winged Teal (Anas carolinensis) [XC356905]
by Jim Holmes from Everett Sewage Treatment Ponds, Snohomish County, Washington, United States (whistle)
Subspecies
Although Anas crecca was split by Sangster et al. (2001) into Common 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 Common Teal (Anas crecca).