Mute Swan vs Águia-rabalva
Cygnus olor comparado com Haliaeetus albicilla
Side-by-Side Comparison
| Atributo | Mute Swan | Águia-rabalva |
|---|---|---|
| Nome científico | Cygnus olor | Haliaeetus albicilla |
| Ordem | Anseriformes | Accipitriformes |
| Família | Anatidae | Accipitridae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | 152,0 cm (59.8 in) | 84,0 cm (33.1 in) |
| Envergadura | 235,0 cm (92.5 in) | 225,0 cm (88.6 in) |
| Peso | 11000,0 g (388.01 oz) | 5200,0 g (183.42 oz) |
| Dieta | Submerged aquatic vegetation, algae, and grass. Feeds by upending in shallow water, reaching depths of … | Fish, waterfowl, and carrion. Often pirates food from other birds. Takes fish from the water … |
| Tamanho da postura | 5-7 | 1-3 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Mute Swan
Lakes, slow rivers, estuaries, and coastal lagoons. Often associated with parks and ornamental waters in Europe.
Águia-rabalva
Coastlines, large lakes, and rivers with mature trees or cliffs for nesting. Requires large undisturbed areas.
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.
Águia-rabalva
High-pitched, yelping 'klee-klee' and deep barking 'ra-ra-ra'. Less vocal than Bald Eagle but similar chattering quality. Gives gull-like wailing near nest in breeding season.
Geographic Range & Migration
Mute Swan
Native to Europe and western Asia. Introduced to North America, South Africa, Australia, and New Zealand.
Águia-rabalva
Northern Europe and Asia from Greenland and Scandinavia to Japan. Reintroduced to Scotland and Ireland.
Estado de conservação
Mute Swan
Águia-rabalva
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
Águia-rabalva
Brown body with a paler head in adults and a distinctive short white wedge-shaped tail. Massive broad wings in flight. Juveniles are darker overall.
Very large, heavy, pale yellow bill
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.
Águia-rabalva
The white-tailed eagle is Europe's largest eagle and the fourth-largest eagle in the world. Once extinct in Britain, it has been successfully reintroduced to Scotland and Ireland through conservation programs. These powerful raptors can live over 25 years and form lifelong pair bonds.