Velvet Scoter vs Mute Swan
Melanitta fusca เปรียบเทียบกับ Cygnus olor
Side-by-Side Comparison
| คุณสมบัติ | Velvet Scoter | Mute Swan |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Melanitta fusca | Cygnus olor |
| อันดับ | Anseriformes | Anseriformes |
| วงศ์ตระกูล | Anatidae | Anatidae |
| สถานะการอนุรักษ์ | Vulnerable | Least Concern |
| ความยาว | — | 152.0 cm (59.8 in) |
| กว้างปีก | 51.8 cm (20.4 in) | 235.0 cm (92.5 in) |
| น้ำหนัก | 1635.1666666666667 g (57.68 oz) | 11000.0 g (388.01 oz) |
| อาหาร | Dives for mussels, cockles, and crustaceans in coastal and brackish waters. Freshwater insects taken on … | Submerged aquatic vegetation, algae, and grass. Feeds by upending in shallow water, reaching depths of … |
| จำนวนไข่ | 7-9 | 5-7 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
ถิ่นที่อยู่อาศัยร่วมกัน
Velvet Scoter only
Mute Swan only
ไม่มี
Mute Swan
Lakes, slow rivers, estuaries, and coastal lagoons. Often associated with parks and ornamental waters in Europe.
Song & Call Comparison
Velvet Scoter
Male emits a low, melodious whistled note; female produces a guttural, rasping call. The male's soft whistle contrasts with the female's harsh, buzzy alarm call on European coasts.
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
Velvet Scoter
Breeds in boreal forests of northern Europe and western Siberia. Winters on coasts of northwestern Europe, the Black Sea, and Caspian Sea.
Mute Swan
Native to Europe and western Asia. Introduced to North America, South Africa, Australia, and New Zealand.
สถานะการอนุรักษ์
Velvet Scoter
Mute Swan
How to Tell Them Apart
Velvet Scoter
Male is jet black overall with a small white teardrop below eye and white speculum visible in flight; yellow-sided bill with black knob at base. Female is dark brown with …
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
Velvet Scoter
A large sea duck (~1.6 kg) of the family Anatidae, males black with a white wing patch and yellow-sided bill. Breeds on lakes and rivers of northern Eurasia; winters on coastal waters of Europe. Forages by diving for mollusks and crustaceans. Vulnerable due to significant population declines attributed to hunting pressure and habitat degradation.
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.