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American Black Duck

American Black Duck - Bird Species | Frinvelis jishebi | ფრინველის ჯიშები

American Black Duck

Description: Black ducks are similar to mallards in size, and resemble the female mallard in coloration, though the black duck's plumage is darker. The male and female black duck are similar in appearance, but the male's bill is yellow while the female's is a dull green. The head is slightly lighter brown than the dark brown body, and the speculum is iridescent violet-blue with predominantly black margins. In flight, the white underwings can be seen in contrast to the dark brown body.

Breeding: The American black duck breeds from the upper Mississippi River across to the northeastern United States, north through northern Saskatchewan, Manitoba, across Ontario and the eastern Canadian provinces. The highest breeding densities are found in Maine and Nova Scotia. Black ducks utilize a variety of habitats for breeding, such as alkaline marshes, acid bogs, lakes, stream margins, fresh, brackish and salt marshes, and the margins of estuaries. Female black ducks lay an average of 9 eggs.

Migrating and Wintering: Black ducks are most common in the Atlantic and Mississippi flyways, with most distributed along the Atlantic coast from the Maritime Provinces to Florida. They are most abundant on coastal wetlands, ranging from the Maritime Provinces, Lake Erie and the St. Lawrence River in Canada, to the mid-Atlantic coast in the United States. High concentrations are found wintering between Long Island and North Carolina. When away from the coast, black ducks use large river valleys like those of the Tennessee, Detroit and Upper Illinois rivers.

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