Mute Swan vs Red-crowned Crane
Cygnus olor so với Grus japonensis
Side-by-Side Comparison
| Thuộc Tính | Mute Swan | Red-crowned Crane |
|---|---|---|
| Tên Khoa Học | Cygnus olor | Grus japonensis |
| Bộ | Anseriformes | Gruiformes |
| Họ | Anatidae | Gruidae |
| Tình Trạng Bảo Tồn | Least Concern | Endangered |
| Chiều Dài | 152,0 cm (59.8 in) | 150,0 cm (59.1 in) |
| Chiều Dài Sải Cánh | 235,0 cm (92.5 in) | 250,0 cm (98.4 in) |
| Khối Lượng | 11000,0 g (388.01 oz) | 8900,0 g (313.94 oz) |
| Chế Độ Ăn | Submerged aquatic vegetation, algae, and grass. Feeds by upending in shallow water, reaching depths of … | Omnivorous — fish, amphibians, insects, grasses, and waste grain. Forages in wetlands and agricultural fields. |
| Số Trứng | 5-7 | 2 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Mute Swan
Lakes, slow rivers, estuaries, and coastal lagoons. Often associated with parks and ornamental waters in Europe.
Red-crowned Crane
Freshwater marshes, bogs, and wet grasslands for breeding. Winters in coastal mudflats, estuaries, and rice paddies.
Song & Call Comparison
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.
Red-crowned Crane
Spectacular unison 'bugling' call: a clear, resonant, far-carrying trumpet 'kru-ru-ru' given by paired birds simultaneously. Among the most majestic bird calls in Asia.
Geographic Range & Migration
Mute Swan
Native to Europe and western Asia. Introduced to North America, South Africa, Australia, and New Zealand.
Red-crowned Crane
Eastern Asia — breeds in northeastern China, southeastern Russia, and Hokkaido, Japan. Winters in Korea and eastern China.
Tình Trạng Bảo Tồn
Mute Swan
Red-crowned Crane
How to Tell Them Apart
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
Red-crowned Crane
White body plumage with black secondary flight feathers and throat. Bare red crown patch. Black face and neck. One of the most elegant crane species.
Long, straight, olive-green bill
Key Differences
- • Weight: Mute Swan (11000g) vs Red-crowned Crane (8900g)
- • Length: Mute Swan (152 cm) vs Red-crowned Crane (150 cm)
- • Wingspan: Mute Swan (235 cm) vs Red-crowned Crane (250 cm)
- • Conservation: Mute Swan (Least Concern) vs Red-crowned Crane (Endangered)
- • Family: Mute Swan (Anatidae) vs Red-crowned Crane (Gruidae)
About These Birds
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.
Red-crowned Crane
The red-crowned crane is one of the rarest crane species and a potent symbol of longevity and fidelity in East Asian culture. Their elaborate unison call and dancing displays have inspired art and folklore for millennia. The resident population on Hokkaido, Japan, recovered from about 33 birds in 1952 to over 1,800 today.