Trumpeter Swan vs Spotted Whistling-duck
Cygnus buccinator so với Dendrocygna guttata
Side-by-Side Comparison
| Thuộc Tính | Trumpeter Swan | Spotted Whistling-duck |
|---|---|---|
| Tên Khoa Học | Cygnus buccinator | Dendrocygna guttata |
| Bộ | Anseriformes | Anseriformes |
| Họ | Anatidae | Anatidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 125,1 cm (49.3 in) | 41,3 cm (16.3 in) |
| Khối Lượng | 9975,0 g (351.86 oz) | 677,5 g (23.90 oz) |
| Chế Độ Ăn | Dabbles for seeds, invertebrates, and aquatic plants in shallow water; diet shifts between plant-rich and … | Primarily herbivorous; grazes tundra grasses and sedges; winters on coastal marshes and farmland, switching to … |
| Số Trứng | 1-9 | 10-11 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Trumpeter Swan only
Không
Spotted Whistling-duck only
Trumpeter Swan
Large deep-water lakes, slow rivers, and wetland complexes in western and interior North America from Alaska and Canada south to Oregon. Winters on ice-free rivers and coastal estuaries.
Spotted Whistling-duck
Freshwater wetlands, rice fields, streams, and forest pools in New Guinea, Sulawesi, the Philippines, and Moluccas. Often found near forested rivers and seasonal swamps at low elevations.
Song & Call Comparison
Trumpeter Swan
A deep, resonant, French-horn-like bugling 'oh-OH-oh'. The most musical of North American swans. Pairs sing in duet. Very different from the thin whistle of smaller swans.
Spotted Whistling-duck
A musical, high whistle similar to other whistling-ducks. Call is softer and less far-carrying than White-faced or Black-bellied species. Given in flight and on water.
Geographic Range & Migration
Trumpeter Swan
Breeds in Alaska and northern Canada; winters along the Pacific and Atlantic coasts from the southern United States to Mexico.
Spotted Whistling-duck
Ranges widely across sub-Saharan Africa in open woodland and savanna. Largely sedentary with local seasonal movements to water.
Tình Trạng Bảo Tồn
Trumpeter Swan
Spotted Whistling-duck
How to Tell Them Apart
Trumpeter Swan
Entirely snow-white plumage in adults. All-black bill lacking yellow patch. Large size; heaviest North American bird. Neck held straight. Juveniles gray-brown, becoming white by second year. Sexes similar.
Spotted Whistling-duck
Dark brown above; head and neck dark brown. Underparts heavily spotted white on dark brown ground, giving spotted appearance. Flanks with bold white spots. Pink-red bill and legs. Sexes similar.
About These Birds
Trumpeter Swan
North America's largest native waterfowl and one of the heaviest flying birds, with all-white plumage, a long neck, and all-black bill. Named for its resonant bugling call. Recovered from near extinction in the 20th century through active conservation. Breeds in northern wetlands.
Spotted Whistling-duck
A small dark brown whistling-duck with bold white spots on its flanks, orange-red bill and legs, and a pale face. Found in tropical wetlands of New Guinea, the Philippines, and Indonesia. Often found near freshwater streams and flooded grassland. Less gregarious than other whistling-ducks.