Lesser Scaup vs Mandarin Duck
Aythya affinis comparado com Aix galericulata
Side-by-Side Comparison
| Atributo | Lesser Scaup | Mandarin Duck |
|---|---|---|
| Nome científico | Aythya affinis | Aix galericulata |
| Ordem | Anseriformes | Anseriformes |
| Família | Anatidae | Anatidae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | — | 44,0 cm (17.3 in) |
| Envergadura | 39,6 cm (15.6 in) | 70,0 cm (27.6 in) |
| Peso | 853,75 g (30.12 oz) | 570,0 g (20.11 oz) |
| Dieta | Dives for molluscs, crustaceans, and aquatic invertebrates in coastal habitats; hard-shelled benthic prey dominates diet. | Seeds, acorns, grains, aquatic plants, insects, snails, and small fish. Forages by dabbling, walking, and … |
| Tamanho da postura | 6-14 | 7-14 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Lesser Scaup
Breeds on boreal lakes, ponds, and wetlands in Canada and Alaska. Winters on large lakes, reservoirs, coastal bays, and freshwater across the southern United States, Mexico, and Central America. Often in large rafts.
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
Lesser Scaup
Male produces a soft, low purring call; female gives a harsh, nasal scaup sound. Voice nearly identical to Greater Scaup but slightly higher; flocks create a burbling, nasal chatter.
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
Lesser Scaup
Breeds in the forested interior of central Canada; winters on large lakes and rivers of the southeastern United States.
Mandarin Duck
Native to East Asia including eastern Russia, China, Japan, and Korea. Feral populations established in Britain and western Europe.
Estado de conservação
Lesser Scaup
Mandarin Duck
How to Tell Them Apart
Lesser Scaup
Males have peaked purple-glossed black head; white flanks; black breast and undertail; gray back. Yellow eye. Smaller than Greater Scaup with peaked crown. Females dark brown with white face patch. …
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
Lesser Scaup
O pato-bastardo é um pato mergulhador pequeno de zonas húmidas de água doce da América do Norte. Os machos têm cabeça preta iridescente com reflexos roxos, pescoço e peito pretos, e flancos brancos. É muito semelhante ao pato-islandez mas ligeiramente menor com cabeço mais arredondado. Hiberna em zonas húmidas costeiras e de interior. É um dos patos mergulhadores mais abundantes na América do Norte. Alimenta-se frequentemente de mexilhões de zebra invasores, que podem ter impactos de saúde negativos.
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.