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ducks
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Duck is the common name for numerous species in the waterfowl family Anatidae. Ducks are divided among several subfamilies in the family Anatidae; they do not represent a monophyletic group (the group of all descendants of a single common ancestral species) but a form taxon, since swans and geese are not considered ducks.
Ducks are sometimes confused with several types of unrelated water birds with similar forms, such as loons or divers, grebes, gallinules and coots.
Tadorna radjah
Body length – 48-60 cm, weight – 840-930 g.
Lifespan -up to 20 years.
Anas gibberifrons
Lifespan in captivity is up to 30 years.
Anas acuta
The male is 59–76 cm (23–30 in) in length and weighs 450–1,360 g (0.99–3.00 lb).
Lifespan in captivity is up to 30 years.
Anas castanea
The chestnut teal is a medium size bird (length - 38 to 45 centimeters).
Lifespan in captivity is up to 30 years.
Anas georgica
The yellow-billed pintail measures 17-22 inches (43-55 cm) in length - including the tail.
Lifespan in captivity is up to 30 years.
Anas specularis
Body length 46-54 cm; weight-up to 1.3 kg.
The average lifespan is about 15 years.
Anas bernieri
This is a small duck, measuring 40 to 45 cm (16 to 18 in) in length, and ranging from 320 to 405 grams (11.3 to 14.3 oz) in mass.
Lifespan in captivity is up to 30 years.
Anas cyanoptera
They are 16 in (41 cm) long, have a 22-inch (560 mm) wingspan, and weigh 14 oz (400 g).
Lifespan in captivity is up to 30 years.
Anas querquedula
Length: 37-41 cm. Wingspan: 60-63 cm. Weight: males: 260-520 g, females: 240-585 g.
Lifespan in captivity is up to 25 years.
Anas laysanensis
An individual at age 14 can weigh 98.1 grams while an individual at age 45 can weigh 402.0 grams. Body length – 38-43 cm.
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