A female Canvasback and her ducklings swim in Alaska. These birds' sloping head profile distinguishes them from other ducks, particularly the similar Redhead.
Video recorded by Eric Liner/Macaulay Library/http://macaulaylibrary.org/video/463674
For more bird videos and sounds, explore the Macaulay Library at the Cornell Lab of Ornithology, http://macaulaylibrary.org.
For additional identification and life history information visit: https://www.allaboutbirds.org/guide/canvasback/id