Common Goldeneye vs Mallard
Bucephala clangula comparado com Anas platyrhynchos
Side-by-Side Comparison
| Atributo | Common Goldeneye | Mallard |
|---|---|---|
| Nome científico | Bucephala clangula | Anas platyrhynchos |
| Ordem | Anseriformes | Anseriformes |
| Família | Anatidae | Anatidae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | — | 58,0 cm (22.8 in) |
| Envergadura | 41,7 cm (16.4 in) | 90,0 cm (35.4 in) |
| Peso | 921,0 g (32.49 oz) | 1100,0 g (38.80 oz) |
| Dieta | Dives for aquatic invertebrates, crustaceans, molluscs, and small fish. Forages in lakes, rivers, and coastal … | Omnivorous — aquatic plants, seeds, insects, crustaceans, and mollusks. Feeds by dabbling, upending, and grazing … |
| Tamanho da postura | 1-28 | 4-18 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Mallard
Nearly any wetland habitat including lakes, rivers, ponds, marshes, estuaries, and urban park ponds.
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.
Mallard
Female gives the classic 'quack-quack-quack', descending in pitch. Male utters soft nasal 'raeb-raeb'. Both give a high 'gag-gag-gag' when alarmed or taking 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.
Mallard
Native across the Northern Hemisphere in North America, Europe, and Asia. Introduced to Australia and New Zealand.
Estado de conservação
Common Goldeneye
Mallard
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.
Mallard
Breeding males have an iridescent green head, white neck ring, chestnut breast, and grey body. Females are mottled brown. Both sexes show a blue speculum bordered by white.
Broad, flat bill — yellow-green in males, orange-brown in females
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.
Mallard
The mallard is the ancestor of most domestic duck breeds and the most abundant and widespread dabbling duck in the world. Males perform elaborate courtship displays including head-bobbing and whistle-grunt calls. Mallards are highly adaptable, thriving in both wilderness and urban environments.