Long-tailed Duck vs Mute Swan
Clangula hyemalis so với Cygnus olor
Side-by-Side Comparison
| Thuộc Tính | Long-tailed Duck | Mute Swan |
|---|---|---|
| Tên Khoa Học | Clangula hyemalis | Cygnus olor |
| Bộ | Anseriformes | Anseriformes |
| Họ | Anatidae | Anatidae |
| Tình Trạng Bảo Tồn | Vulnerable | Least Concern |
| Chiều Dài | — | 152,0 cm (59.8 in) |
| Chiều Dài Sải Cánh | 43,1 cm (17.0 in) | 235,0 cm (92.5 in) |
| Khối Lượng | 782,0 g (27.58 oz) | 11000,0 g (388.01 oz) |
| Chế Độ Ăn | Dives deeply for crustaceans, molluscs, and small fish in Arctic and subarctic seas. Freshwater invertebrates … | Submerged aquatic vegetation, algae, and grass. Feeds by upending in shallow water, reaching depths of … |
| Số Trứng | 2-11 | 5-7 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Mute Swan
Lakes, slow rivers, estuaries, and coastal lagoons. Often associated with parks and ornamental waters in Europe.
Song & Call Comparison
Long-tailed Duck
Male sings a musical, yodeling ow-owlet-aaaalett sequence; female gives a low, grunting quack. The male's loud, harmonious yodeling is arguably the most musical call among all waterfowl species.
Mute Swan
Despite its name, not truly mute: gives hissing snorts and low grunting when threatened. Wings produce a loud rhythmic whistling throbbing sound in flight.
Geographic Range & Migration
Long-tailed Duck
Circumpolar High Arctic breeder. Winters at sea on coasts of northwestern Europe, northeastern North America, and the Bering Sea region.
Mute Swan
Native to Europe and western Asia. Introduced to North America, South Africa, Australia, and New Zealand.
Tình Trạng Bảo Tồn
Long-tailed Duck
Mute Swan
How to Tell Them Apart
Long-tailed Duck
Male in winter is mostly white with dark brown chest band, scapulars, and cheek patch; elongated central tail feathers extend well beyond body. Female is brownish with white face, dark …
Mute Swan
All-white plumage in adults. Cygnets are grey-brown, gradually whitening over the first year. Graceful S-curved neck posture is distinctive.
Orange bill with a prominent black knob at the base, larger in males
About These Birds
Long-tailed Duck
A medium-sized Arctic sea duck (~780 g) in family Anatidae, males having elongated central tail feathers. Breeds across circumpolar tundra; winters in large flocks on coastal and open-ocean waters. Dives to impressive depths for crustaceans, fish, and mollusks. Vulnerable; steep population declines linked to bycatch in fishing nets and climate change.
Mute Swan
The mute swan is one of the heaviest flying birds, with males weighing up to 14 kg. Despite its name, it is not truly mute, producing hissing, grunting, and snorting sounds. Mute swans form lifelong pair bonds and their aggressive defense of nesting territory is well known.