Greater Scaup vs Mandarin Duck
Aythya marila comparado com Aix galericulata
Side-by-Side Comparison
| Atributo | Greater Scaup | Mandarin Duck |
|---|---|---|
| Nome científico | Aythya marila | Aix galericulata |
| Ordem | Anseriformes | Anseriformes |
| Família | Anatidae | Anatidae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | — | 44,0 cm (17.3 in) |
| Envergadura | 42,7 cm (16.8 in) | 70,0 cm (27.6 in) |
| Peso | 984,0 g (34.71 oz) | 570,0 g (20.11 oz) |
| Dieta | Eats molluscs, crustaceans, and aquatic invertebrates in coastal and freshwater habitats; diet shifts between invertebrate … | Seeds, acorns, grains, aquatic plants, insects, snails, and small fish. Forages by dabbling, walking, and … |
| Tamanho da postura | 4-12 | 7-14 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Greater Scaup only
Mandarin Duck only
Nenhum
Greater Scaup
Breeds on tundra and boreal lakes in the Arctic and subarctic across Eurasia and North America. Winters in large numbers on coastal bays, estuaries, and large lakes in temperate regions.
Mandarin Duck
Wooded lakes, rivers, and ponds surrounded by dense forest. Unlike most ducks, regularly perches in trees and nests in tree cavities.
Song & Call Comparison
Greater Scaup
Male gives a low, purring wheeze; female produces a harsh, rolling quacking sequence. Calls are very similar to Lesser Scaup but slightly lower-pitched; heard on open ocean bays in winter.
Mandarin Duck
Male gives a low whistled 'hib' or 'weep'. Female utters a soft quacking 'kek'. Generally quiet and secretive. No loud territorial song; vocalizations subtle and brief.
Geographic Range & Migration
Greater Scaup
Breeds in the high Arctic of North America; winters offshore on the Atlantic coast from Labrador to South Carolina.
Mandarin Duck
Native to East Asia including eastern Russia, China, Japan, and Korea. Feral populations established in Britain and western Europe.
Estado de conservação
Greater Scaup
Mandarin Duck
How to Tell Them Apart
Greater Scaup
Males have glossy green-black rounded head; white flanks and belly; black breast and undertail; gray back. Yellow eye. Bill blue-gray. Females dark brown with white face patch around bill. Longer …
Mandarin Duck
Breeding males have an elaborate pattern of orange, green, white, and purple with distinctive orange sail feathers on the back. Females are grey-brown with a white eye-ring and stripe.
Small red bill in breeding males, pinkish in females
About These Birds
Greater Scaup
O pato-islandez é um grande pato mergulhador de áreas subárticas. Os machos têm cabeça verde-preta iridescente, dorso cinzento finamente barrado e flancos brancos. Cria em lagos e pântanos da tundra e taiga no Hemisfério Norte. Hiberna em costas marinhas e grandes lagos. É ligeiramente maior do que o semelhante pato-bastardo, do qual se distingue pelo tamanho do cabeço e padrão da cabeça. É um pato cinegético com populações estáveis.
Mandarin Duck
The mandarin duck is widely considered the most beautiful duck in the world. In East Asian culture, mandarin ducks symbolize love and fidelity because they form strong pair bonds. Unlike most ducks, mandarins nest in tree holes up to 9 meters above the ground, and day-old ducklings must leap to the ground.