Mandarin Duck vs Brazilian Merganser
Aix galericulata 비교 대상 Mergus octosetaceus
Side-by-Side Comparison
| 속성 | Mandarin Duck | Brazilian Merganser |
|---|---|---|
| 학명 | Aix galericulata | Mergus octosetaceus |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Critically Endangered |
| 체장 | 44.0 cm (17.3 in) | — |
| 날개 폭 | 70.0 cm (27.6 in) | 39.2 cm (15.4 in) |
| 체중 | 570.0 g (20.11 oz) | 827.6666666666666 g (29.20 oz) |
| 식성 | Seeds, acorns, grains, aquatic plants, insects, snails, and small fish. Forages by dabbling, walking, and … | Dives for small fish in fast-flowing South American rivers. Critically endangered; uses serrated bill to … |
| 산란 수 | 7-14 | 5-8 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
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
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.
Brazilian Merganser
Male produces a harsh, rasping call; female gives a guttural, grunting series. Critically endangered; quiet vocalizations suit its secretive lifestyle in fast-flowing Brazilian mountain rivers.
Geographic Range & Migration
Mandarin Duck
Native to East Asia including eastern Russia, China, Japan, and Korea. Feral populations established in Britain and western Europe.
Brazilian Merganser
Critically endangered; restricted to a few rivers in southern Brazil, Argentina, and Paraguay. Found on fast-flowing rivers in Atlantic Forest.
보전 상태
Mandarin Duck
Brazilian Merganser
How to Tell Them Apart
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
Brazilian Merganser
Male has dark glossy greenish-black head with long shaggy crest; finely vermiculated grey body, white wing patch. Female similar but with rufous-chestnut wash on head and shorter crest.
About These Birds
Mandarin Duck
중간 크기의 아름다운 오리로 체장 41–49cm이며, 수컷은 오렌지색 볏, 녹색과 보라색 관, 흰색 눈썹, 청동색 옆구리가 화려하게 어우러진 깃털을 갖는다. 동아시아 산지 숲 속 호수와 하천에 서식하며, 유럽과 북아메리카에도 도입되었다. 견과류, 씨앗, 수생식물을 먹는다. 관심 필요 종이다.
Brazilian Merganser
중형 물오리로 체장 약 55cm이며, 수컷은 광택 있는 녹색 머리, 흰 몸통, 빨간 부리를 갖는다. 남아메리카 내륙 강과 청정 하천에 서식한다. 잠수하여 어류를 먹는다. 위기 상태이다.