The Gadwall, Anas strepera, drake is mostly gray with a brown head and a black rump. Both the drake and the brown hen have distinctive black bordered white wing patches, which can be seen in flight and occasionally at rest.
Gadwalls are most numerous in the Central Flyway, but not too common anywhere. They are often called "gray mallards" or "gray ducks." They are one of the earliest migrants, seldom facing cold weather.
They are the only puddle ducks with a white speculum. Small, compact flocks fly swiftly, usually in a direct line. Wingbeats are rapid.
Weight: 2 lbs.
Drakes whistle and kack-kack; hens quack like a mallard, but softer.