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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.
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 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.
Anas crecca
The Eurasian teal is one of the smallest extant dabbling ducks at 34–43 cm (13–17 in) length and with an average weight of 360 g (13 oz) .
Lifespan in captivity is up to 30 years.
Anas flavirostris
Average weight of 390 g; males average 430 g. It measures 37 to 43 cm in length .
Lifespan in captivity is up to 30 years.
Anas versicolor
Silver teals are about the size of a Wood duck, betweeusually n 17 and 19 inches in total length.
Silver teal can live up to 15-20 years in a captive environment.
Anas capensis
The Cape teal is a 44–46 cm long dabbling duck.
Lifespan in captivity is up to 30 years.
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