American Black Duck

Anas rubripes

A duck of the Northeast, the American Black Duck shows clear affinities with the Mallard. Populations declined precipitously in the mid-20th century, but the combined conservation efforts of the United States and Canada may have the numbers on the rise.

Cool Facts

Photo taken from:
The Sibley Field Guide to Birds of Western North America by David Allen Sibley
  • The American Black Duck occasionally strays from its normal range. One female banded in New Brunswick, Canada turned up in France.
  • The American Black Duck has suffered somewhat from the introduction of captive-raised Mallards into its breeding range. The species hybridize (interbreed), and the Mallard may take over some breeding spots from the black duck. Still, the black duck seems to be holding its own in most of its range.

Description

Adult Description

  • Large dabbling duck.
  • Body dark blackish-brown.
  • Head and neck lighter brown.
  • Legs and feet red.
  • White underwing linings contrast sharply with dark body in flight.

Male Description

Bill olive green to yellow. Markings of chest feathers U-shaped. Eclipse plumage similar, but chest feathers without internal markings.

Female Description

Slightly paler. Bill olive to greenish-gray, with dark markings. Markings of chest feathers V-shaped.

Immature Description

Similar to adult. Underparts more heavily streaked.
Range Map
 
Taxonomic Hierarchy

Spotted_Sandpiper_AllAm

© 2003 Cornell Lab of Ornithology
Kingdom: Animalia
Phylum: Chordata
     Subphylum: Vertebrata
Class: Aves
Order: Anseriformes
Family: Anatidae
     Subfamily: Anatinae
Genus: Anas
Species: Anas rubripes
Sound
A raspy "quack."

Identification and Information
See Anatomy of a Bird
Body
  • Length Range: 48-58 cm (19-23 in)
  • Weight: 1406 g (49.6 oz)
  • Size: Large (16 - 32 in)
  • Color Primary: Brown, Sheen or Iridescence
  • Underparts: Brown-black
  • Upperparts: Brown-black
  • Back Pattern: Scaled or Scalloped
  • Belly Pattern: Scaled or Scalloped
  • Breast Pattern: Mottled
 
Head
  • Bill Shape: Spatulate
  • Eye Color: Medium brown.
  • Head Pattern: Eyeline, Capped, Streaked
  • Crown Color: Gray-brown
  • Forehead Color: Gray-brown
  • Nape Color: Dark Brown
  • Throat Color: Gray-brown
  • Cere color: No Data
Flight
  • Flight Pattern: Direct flight with rapid wing beats.
  • Wingspan Range: 84-91 cm (33-36 in)
  • Wing Shape: Tapered-Wings
  • Tail Shape: Pointed Tail
  • Tail Pattern: Dark Brown
  • Upper Tail: Dark Brown
  • Under Tail: Brown-black
  • Leg Color: Orange
Breeding
  • Breeding Location: Lakes, Marshes, freshwater, Swamps
  • Breeding Type: Monogamous, Solitary nester
  • Breeding Population: Fairly common
  • Egg Color: Creamy white to green buff
  • Number of Eggs: 6 - 12
  • Incubation Days: 26 - 29
  • Egg Incubator: Female
  • Nest Material: Scrape on the ground, constructed from leaves, grass, twigs, pine needles, and lined with down and feathers
  • Migration: Migratory
  • Condition at Hatching: Covered in down and able to leave the nest soon after hatching.

Other Names

Similar Species

  • Canard noir (French)
  • Ánade sombrio americano (Spanish)
  • Female Mallard has bold white borders to speculum, orange bill, whitish tail feathers, pale belly, and is paler overall.
  • Eclipse male Mallard has paler appearance, rusty wash on chest, and white borders to the speculum.
  • Mottled Duck has paler appearance, broader buffy edging and internal markings on the body feathers, a greenish-blue speculum with a narrow white trailing edge, and a black spot at the base of the bill at the gape.
  • Male hybrid of Mallard and American Black Duck usually has some green on the head.

Conservation Status

American Black Duck numbers declined significantly in mid 20th century. Hunting was restricted in 1983, and populations stabilized and then started to increase. The United States and Canada started the Black Duck Joint Venture

 

Habitat

Sources used to Construct this Page:

  • Breeds in a variety of wetland habitats, from salt marshes to beaver ponds, river islands, and boreal bogs.
  • Winters primarily in salt water along coasts, but in a variety of freshwater areas inland.
  • Longcore, J. R., D. G. McAuley, G. R. Hepp, and J. M. Rhymer. 2000. American Black Duck (Anas rubripes). In The Birds of North America, No. 481 (A. Poole and F. Gill, eds.). The Birds of North America, Inc., Philadelphia, PA.
Food
Seeds, roots, stems, grain, aquatic plants, aquatic insects, crustaceans, mollusks, and some fish.
Behavior
Dabbles. Filter-feeds at surface of water. Tips-up in shallow water. Makes occasional dives in deeper water.

Adult Sexes Similar

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Additional Photos & Video

Adult Sexes Similar

       
Videos
 
 
 
 

All photos © 2008 Rick Swartzentrover - Free for non-profit use.

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