BEBEK = DUCK

For duck as a food, see Duck (food); for other meanings, see Duck (disambiguation).

Ducks
A duck (female) and drake (male) Mallard
A duck (female) and drake (male) Mallard
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Anseriformes
Family: Anatidae
Subfamilies

Dendrocygninae
Oxyurinae
Anatinae
Aythyinae
Merginae

Duck is the common name for a number of species in the Anatidae family of birds. The ducks are divided between several subfamilies listed in full in the Anatidae article. Ducks are mostly aquatic birds, mostly smaller than their relatives the swans and geese, and may be found in both fresh water and sea water.

Most ducks have a wide flat beak adapted for dredging. They exploit a variety of food sources such as grasses, aquatic plants, fish, insects, small amphibians[1], worms, and small molluscs.

Ducks are sometimes confused with several types of unrelated water birds with similar forms, such as loons or divers, grebes, gallinules, and coots.

Many species of duck are temporarily flightless while moulting; they seek out protected habitat with good food supplies during this period. This moult typically precedes migration.

Some duck species, mainly those breeding in the temperate and Arctic Northern Hemisphere, are migratory; those in the tropics, however, are generally not. Some ducks, particularly in Australia where rainfall is patchy and erratic, are nomadic, seeking out the temporary lakes and pools that form after localised heavy rain.

Types of ducks, and feeding

Diving ducks and sea ducks forage deep underwater. To be able to submerge more easily, the diving ducks are heavier than dabbling ducks, and therefore have more difficulty taking off to fly.

Dabbling ducks feed on the surface of water or on land, or as deep as they can reach by up-ending without completely submerging. [1] Along the inside of the beak they have tiny rows of plates called lamellae like a whale’s baleen. These let them filter water out of the side of their beaks and keep food inside.

A few specialized species such as the smew, goosander, and the mergansers are adapted to catch large fish.

In the Mallard the tongue is a flat plate, and on the tongue’s back end is a short liftable flap with about 18 short spikes on for pushing struggling prey and other food down its throat.

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