Wildlife - Species


Photograph of Gadwall Drake - photography by US Fish and Wildlife Service

Species Specific Regulations

Gadwall

Licenses: Hunting License required. Migratory Bird Hunting and Conservation Stamp (Federal Duck Stamp) that is validated by the hunter signing the stamp in ink across the face of the stamp

Limits: Please see Migratory Bird Regulations for any game zones restrictions or Limitations.

Complete hunting regulations.

Gadwall (Anas strepera)

Gadwall

Description
Male gadwall are drabber in appearance than other ducks and are often called "gray mallards" or "gray ducks." These are the only puddle ducks with a white speculum.

Average Size
Gadwalls have an average length of 21 inches and an average weight of 2 pounds.

Range
Gadwalls are most numerous in the Central flyway, but not too common anywhere. Gadwalls are found in all but the westernmost part of South Carolina during the winter months.

Preferred Habitat
Their summer habitat includes well-vegetated wetlands with emergent plants, like prairie potholes of the Great Plains. Gadwalls overwintering habitat includes ponds, reservoirs, and coastal, fresh and brackish marshes.

 

Typical Flock Pattern

Flock pattern illustration

Wings

Gadwall wings

Food Habits

Gadwalls feed primarily on seeds, submerged aquatic vegetation, and aquatic invertebrates.

Reproduction

Gadwalls form pair bonds during fall migration and on the wintering grounds. On return to their summering habitat, the female selects a nest site in dense vegetation. The female scrapes out a nest and surrounds it with leaves and twigs. When the nest is complete she lays 7-12 dull white to greenish gray eggs.

Sound

Drakes whistle and kack-kack, and hens quack like a mallard, but softer.

Behavior

  • One of the earliest migrants, seldom facing cold weather.
  • Small, compact flocks fly swiftly, usually in a direct line with rapid wingbeats.
  • Excellent swimmers, but rarely dive for food.
  • Will steal food from American coots and other ducks.
  • During the breeding season males exhibit a level of tolerance toward other males, only becoming aggressive in mate defense.
  • Commonly found in groups during the winter, may be mixed in with American coots and wigeons

Citations, Publications and Literature

U.S. Fish & Wildlife Service, Federal Duck Stamp Office Presents: North American Waterfowl (Adobe PDF file)

Leschack, C. R., S. K. Mckinght and G. R. Hepp. 1997. Gadwall (Anas strepera), The Birds of North America Online (A. Poole, Ed.). Ithaca: Cornell Lab of Ornithology; Retrieved from the Birds of North America Online: http://bna.birds.cornell.edu/bna/species/283

Hunting Information

For more information, please see:

Dean Harrigal - Waterfowl Biologist

SCDNR
585 Donnelley Drive
Green Pond, SC 29446
Phone: 843-844-8957
Fax: 843-844-2525

E-mail: harrigald@dnr.sc.gov