Black-bellied Whistling-duck vs Mandarin Duck
Dendrocygna autumnalis 비교 대상 Aix galericulata
Side-by-Side Comparison
| 속성 | Black-bellied Whistling-duck | Mandarin Duck |
|---|---|---|
| 학명 | Dendrocygna autumnalis | Aix galericulata |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | 44.0 cm (17.3 in) |
| 날개 폭 | 48.2 cm (19.0 in) | 70.0 cm (27.6 in) |
| 체중 | 757.9 g (26.73 oz) | 570.0 g (20.11 oz) |
| 식성 | Grazes subarctic tundra grasses and sedges; winters on coastal salt marshes and agricultural fields eating … | Seeds, acorns, grains, aquatic plants, insects, snails, and small fish. Forages by dabbling, walking, and … |
| 산란 수 | 9-18 | 7-14 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Black-bellied Whistling-duck
Freshwater wetlands, ponds, lake margins, flooded fields, and wooded swamps from the southern United States and Mexico through Central America to Ecuador, Bolivia, and Argentina. Uses nest boxes readily.
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
Black-bellied Whistling-duck
A high, reedy whistle 'pe-che-che-ne' given in flight. Flocks produce a continuous whistling chorus. Also gives a squeaky 'whe-eee' contact call while swimming.
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
Black-bellied Whistling-duck
Inhabits freshwater marshes and riverbanks from southeastern Brazil to northern Argentina and Bolivia. Sedentary; locally common.
Mandarin Duck
Native to East Asia including eastern Russia, China, Japan, and Korea. Feral populations established in Britain and western Europe.
보전 상태
Black-bellied Whistling-duck
Mandarin Duck
How to Tell Them Apart
Black-bellied Whistling-duck
Gray head with brown cap and chestnut breast; black belly is distinctive. Wings show broad white patch in flight. Coral-pink bill and long pink legs. Upright posture. 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
Black-bellied Whistling-duck
밝은 붉은 부리, 밤색-검은색 몸통, 넓은 흰 날개 줄무늬, 특유의 휘파람 소리 울음을 가진 뚜렷한 무늬의 홍따오기. 미국 남부에서 남아메리카 중부까지 담수 습지에서 흔하다. 나무 구멍에 둥지를 튼다. 종종 나무에 횃대를 잡는데—물새로서는 이례적.
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.