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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.
Dendrocygna viduata
Length – 14-18 inches, weight – 1-2 pounds.
Lifespan can reach 20 years.
Dendrocygna arborea
The West Indian whistling duck is the largest (48–56 cm).
Lifespan can reach 20 years.
Anas hottentota, или Anas punctata, или Punanetta hottentota
Length – 330-350 mm, weight – 54-288 g.
Lifespan average is 20 to 30 years.
Dendrocygna arcuata
They range in size from 54–60 cm in height and weigh on average 750 grams.
Lifespan can reach 20 years.
Dendrocygna javanica
Size–42 cm, wingspan – 70-74 cm, weight – 550-600 g.
Lifespan can reach 20 years.
Tadorna tadornoides
Length – 56-72 cm, weight – 1,3-1,6 kg.
Lifespan -up to 20 years.
Dendrocygna guttata
Weight – 0,7-0,9 kg, height – 45 cm about.
Lifespan can reach 20 years.
Nettapus coromandelianus
At as little as 160 g (5.6 oz) and 26 cm (10 in).
Lifespan is 10-25 years.
Mergus serrator
The adult red-breasted merganser is 51–62 cm (20–24 in) long . The red-breasted merganser weight ranges from 28.2-47.6 oz (800-1350 g).
The average lifespan of these birds is more than 10 years.
Mergus merganser
It is 58–72 cm (23–28 in) long with a 78–97 cm (31–38 in) wingspan and a weight of 0.9–2.1 kg (2.0–4.6 lb).
The record for the oldest common merganser is held at 13 years 5 months.
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