Common Goldeneye vs Mute Swan
Bucephala clangula comparado com Cygnus olor
Side-by-Side Comparison
| Atributo | Common Goldeneye | Mute Swan |
|---|---|---|
| Nome científico | Bucephala clangula | Cygnus olor |
| Ordem | Anseriformes | Anseriformes |
| Família | Anatidae | Anatidae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | — | 152,0 cm (59.8 in) |
| Envergadura | 41,7 cm (16.4 in) | 235,0 cm (92.5 in) |
| Peso | 921,0 g (32.49 oz) | 11000,0 g (388.01 oz) |
| Dieta | Dives for aquatic invertebrates, crustaceans, molluscs, and small fish. Forages in lakes, rivers, and coastal … | Submerged aquatic vegetation, algae, and grass. Feeds by upending in shallow water, reaching depths of … |
| Tamanho da postura | 1-28 | 5-7 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Mute Swan
Lakes, slow rivers, estuaries, and coastal lagoons. Often associated with parks and ornamental waters in Europe.
Song & Call Comparison
Common Goldeneye
Male emits a buzzy, insect-like zeee-zeee-zeee wing whistle; female gives a grating quack. The mechanical wing-whistle produced by the male in display flight is the species' most distinctive sound.
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
Common Goldeneye
Breeds across boreal forests of North America, Europe, and Asia. Winters on coasts and large lakes south to the Mediterranean and the Gulf states.
Mute Swan
Native to Europe and western Asia. Introduced to North America, South Africa, Australia, and New Zealand.
Estado de conservação
Common Goldeneye
Mute Swan
How to Tell Them Apart
Common Goldeneye
Male has glossy green-black head with round white spot at bill base; body white with black back and scapulars; yellow eye. Female has chocolate-brown head, white collar, and grey body.
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
Common Goldeneye
O pato-olho-de-ouro é um pato mergulhador médio notável pelos seus olhos amarelo-dourados brilhantes. Os machos têm cabeça verde-preta iridescente com remendo branco redondo perto do bico. Cria em buracos de árvore em florestas boreais junto a lagos de água limpa. Os filhotes saltam dos buracos do ninho pouco depois de eclodir. Hiberna em costas marinhas e grandes corpos de água dulcícola. O som de assobio dos machos com as asas durante o voo é inconfundível.
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.