Black-necked Swan vs Mute Swan
Cygnus melancoryphus в сравнении с Cygnus olor
Side-by-Side Comparison
| Характеристика | Black-necked Swan | Mute Swan |
|---|---|---|
| Научное название | Cygnus melancoryphus | Cygnus olor |
| Отряд | Anseriformes | Anseriformes |
| Семейство | Anatidae | Anatidae |
| Охранный статус | Least Concern | Least Concern |
| Длина | — | 152,0 cm (59.8 in) |
| Размах крыльев | 82,4 cm (32.4 in) | 235,0 cm (92.5 in) |
| Масса | 5275,0 g (186.07 oz) | 11000,0 g (388.01 oz) |
| Питание | Grazes aquatic plants and dabbles for invertebrates; diet includes seeds, roots, and aquatic invertebrates in … | Submerged aquatic vegetation, algae, and grass. Feeds by upending in shallow water, reaching depths of … |
| Размер кладки | 4-8 | 5-7 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Black-necked Swan
Freshwater lakes, lagoons, rivers, estuaries, and coastal wetlands in southern South America from central Chile and Argentina to Tierra del Fuego. Partially migratory; concentrates at coastal estuaries in winter.
Mute Swan
Lakes, slow rivers, estuaries, and coastal lagoons. Often associated with parks and ornamental waters in Europe.
Song & Call Comparison
Black-necked Swan
A musical, whistling 'whoo' or soft 'whooh'. Less loud than Trumpeter or Whooper Swan. Gives hissing at close range. Considered relatively quiet for a large swan.
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
Black-necked Swan
Breeds across the northern Great Plains and prairie provinces; winters along the Atlantic coast and Gulf of Mexico.
Mute Swan
Native to Europe and western Asia. Introduced to North America, South Africa, Australia, and New Zealand.
Охранный статус
Black-necked Swan
Mute Swan
How to Tell Them Apart
Black-necked Swan
White body plumage with entirely black head, neck, and upper foreneck. Red double-lobed knob at bill base. Bill grayish-blue. White stripe behind eye. Pink-red legs. Sexes similar; striking contrast.
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
Black-necked Swan
A large elegant swan with pure white body plumage and a contrasting jet-black neck and head, a red bill with bright red caruncle, and a white stripe behind the eye. Native to southern South America. Unique coloration makes it unmistakable. Feeds on aquatic vegetation by upending.
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.