Ross's Goose vs Mandarin Duck
Anser rossii comparado com Aix galericulata
Side-by-Side Comparison
| Atributo | Ross's Goose | Mandarin Duck |
|---|---|---|
| Nome científico | Anser rossii | Aix galericulata |
| Ordem | Anseriformes | Anseriformes |
| Família | Anatidae | Anatidae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | — | 44,0 cm (17.3 in) |
| Envergadura | 69,2 cm (27.2 in) | 70,0 cm (27.6 in) |
| Peso | 1513,5 g (53.39 oz) | 570,0 g (20.11 oz) |
| Dieta | Eats aquatic plants, seeds, and grasses near wetlands; omnivorous in breeding; takes invertebrates in shallow … | Seeds, acorns, grains, aquatic plants, insects, snails, and small fish. Forages by dabbling, walking, and … |
| Tamanho da postura | 2-8 | 7-14 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Ross's Goose
Breeds on tundra near Hudson Bay and the central Canadian Arctic. Winters in agricultural fields, rice paddies, and wetlands in the central and southern United States, particularly California's Central Valley.
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
Ross's Goose
A high, nasal yelping 'whoik' or 'hoik' — higher-pitched than Snow Goose. Flocks mix with Snow Geese; calls differ noticeably by pitch. Fast, repeated notes in flight.
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
Ross's Goose
Breeds in high Arctic tundra; winters at sea in the North Atlantic from Iceland to the British Isles and northeastern 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
Ross's Goose
Mandarin Duck
How to Tell Them Apart
Ross's Goose
Smallest white North American goose; pure white plumage with black wingtips. Short triangular pink bill with warty pinkish-gray base. Pink-red legs. Occasional blue morph. Sexes similar.
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
Ross's Goose
O ganso-de-ross é o menor ganso branco da América do Norte. Assemelha-se ao ganso-branco mas é consideravelmente menor com bico mais curto, arredondado e sem o sorriso preto característico do ganso-branco. Cria em colónias densas na tundra ártica canadiana. Hiberna no Vale Central da Califórnia e no Sul dos Estados Unidos. As populações têm crescido dramaticamente nas últimas décadas, tornando-se um dos poucos gansos cujas populações têm aumentado significativamente.
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.