Eastern Spot-billed Duck

Anas zonorhyncha

Order

ANSERIFORMES

Family

Ducks, Geese and Swans (Anatidae)

Code 4

ESBD

Code 6

ANAZON

ITIS

Egg Color:

White



Number of Eggs:

7 - 10



Incubation Days:

26 - 30



Egg Incubator:

Female



Nest Location:

On ground, near water.



Nest Material:

Moss, grasses, feathers and down



Migration:

Migratory



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General

Eastern Spot-billed Duck: Native of Asia, named for red spots at base of yellow-tipped black bill; however, the subspecies occurring in North America generally lacks these red spots. Scaled brown overall with buff face, neck and upper breast, and dark crown, nape and eyestripe. Speculum is blue with white borders; legs and feet are orange. Sexes are similar. Juvenile is grayer overall.

Range and Habitat

Eastern Spot-billed Duck: Breeds in eastern Asia from Siberia south to India and Southeast Asia. There have been a handful of sightings in the Aleutian Islands. Winters south to the Philippines. Found in areas of shallow water such as ponds and freshwater marshes, with significant amounts of aquatic vegetation.

Breeding and Nesting

Eastern Spot-billed Duck: Seven to ten white eggs are laid in a nest lined with feathers and down on dry ground on top of a thick pile of moss or grasses. Female incubates eggs from 26 to 30 days.

Foraging and Feeding

Eastern Spot-billed Duck: Eats aquatic plants, seeds, and snails by dabbling in water with head in water and tail pointed up.

Vocalization

Eastern Spot-billed Duck: Has not been recorded but is similar to Mallard.

Similar Species

Eastern Spot-billed Duck: Female Mallard has yellow-orange bill with dark mottling and metallic blue speculum with white border. American Black Duck is black-brown overall, yellow bill with black tip and purple-blue speculum with black border.

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BreastX
The upper front part of a bird.
CrownX
The crown is the top part of the birds head.
FaceX
The front part of the head consisting of the bill, eyes, cheeks and chin.
NapeX
Also called the hindneck or collar, it is the back of the neck where the head joins the body.
SpeculumX
The brightly colored area on the wing (secondaries of the wing) on several duck species.
Parts of a Standing bird X
Head Feathers and Markings X
Parts of a Flying bird X