Tadorna canaTadorna cana pair in flight, Saldanha Bay, West Coast National Park, South Africa; 33.189978°S 18.123524°E.Source: Flickr. Cropped and tilt corrected from original.
Pintails (Anas acuta) squeak and quack at Peck's Lake [Arizona] in March, 1998. The peeping sound is heard most frequently, but they do quack, as at the end of this sample.