Mottled Duck vs Mute Swan
Anas fulvigula เปรียบเทียบกับ Cygnus olor
Side-by-Side Comparison
| คุณสมบัติ | Mottled Duck | Mute Swan |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Anas fulvigula | Cygnus olor |
| อันดับ | Anseriformes | Anseriformes |
| วงศ์ตระกูล | Anatidae | Anatidae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | — | 152.0 cm (59.8 in) |
| กว้างปีก | 48.9 cm (19.3 in) | 235.0 cm (92.5 in) |
| น้ำหนัก | 1027.5 g (36.24 oz) | 11000.0 g (388.01 oz) |
| อาหาร | Dives for freshwater fish and aquatic invertebrates; saw-edged bill grips prey; diet strongly fish-dominated year-round. | Submerged aquatic vegetation, algae, and grass. Feeds by upending in shallow water, reaching depths of … |
| จำนวนไข่ | 9-13 | 5-7 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Mottled Duck
Coastal freshwater and brackish marshes, wet prairies, and gulf coast wetlands in Florida and along the Gulf of Mexico coast to Texas. Non-migratory year-round resident. Threatened by Mallard hybridization.
Mute Swan
Lakes, slow rivers, estuaries, and coastal lagoons. Often associated with parks and ornamental waters in Europe.
Song & Call Comparison
Mottled Duck
Female gives a loud, Mallard-like quacking series; male produces a soft, nasal note. Alarm call is a rapid, emphatic quacking burst; flocks generate a loud chorus on Gulf Coast marshes.
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
Mottled Duck
Breeds across sub-Arctic and boreal regions of Eurasia; winters in sub-Saharan Africa and South Asia.
Mute Swan
Native to Europe and western Asia. Introduced to North America, South Africa, Australia, and New Zealand.
สถานะการอนุรักษ์
Mottled Duck
Mute Swan
How to Tell Them Apart
Mottled Duck
Rich mottled brown plumage with buff-edged feathers and pale buff head and throat. Dark crown and eye stripe. Iridescent blue speculum with white border. Yellow-orange bill. Sexes similar. Resembles non-breeding …
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
Mottled Duck
A medium-sized buff-brown dabbling duck closely related to the Mallard, with a plain brown body, yellow bill, and blue speculum. Non-migratory; restricted to coastal marshes of Florida and the Gulf Coast. Threatened by hybridization with introduced Mallards in Florida.
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.