black-necked swan

Black-necked Swan

Cygnus melanocoryphus

CLASS Aves | ORDER Anseriformes | FAMILY Anatidae

RANGE Falkland Islands and Southern South America, including areas of Brazil, Bolivia and Patagonia

HABITAT Swamps, brackish lagoons, shallow lakes, freshwater marshes

DIET Pond weeds and algae, insects, small invertebrates and fish spawn

8 - 15 lbs

40 – 55 in

70 in

36 days

4 - 8 eggs

IUCN Status
Least Concern
black-necked swan

The black-necked swan is the largest waterfowl in southern South America. Their bill has special jagged edge that helps them tear through tough or slippery vegetation.

These birds spend most of their time in the water. They are excellent swimmers, but are awkward walkers on land. They are one of the fastest fliers of the eight swan species, often reaching speeds of 50 miles per hour.

black-necked swan

The male is referred to as the cob, the female as the pen, and the young are called cygnets. They are aggressive and very protective birds.

black-necked swan

Common and widespread; not globally threatened. Habitat loss, including draining of many marsh and wetland areas, continues to be the largest threat to this species.