Lesser Whistling-duck vs Mandarin Duck
Dendrocygna javanica 비교 대상 Aix galericulata
Side-by-Side Comparison
| 속성 | Lesser Whistling-duck | Mandarin Duck |
|---|---|---|
| 학명 | Dendrocygna javanica | Aix galericulata |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | 44.0 cm (17.3 in) |
| 날개 폭 | 38.8 cm (15.3 in) | 70.0 cm (27.6 in) |
| 체중 | 525.0 g (18.52 oz) | 570.0 g (20.11 oz) |
| 식성 | Grazes subarctic grasses and rushes; migratory; winters on estuarine mudflats and coastal grasslands eating eelgrass … | Seeds, acorns, grains, aquatic plants, insects, snails, and small fish. Forages by dabbling, walking, and … |
| 산란 수 | 7-17 | 7-14 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Lesser Whistling-duck
Freshwater wetlands, lakes, rice paddies, mangroves, and slow rivers across South and Southeast Asia from India through southern China to Borneo and Indonesia. Common near cultivated land and human settlements.
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 Whistling-duck
A softer, higher-pitched whistle than other Dendrocygna. Call is a quick 'we-we' given in flight. Smaller size reflected in higher-pitched and thinner quality of call.
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 Whistling-duck
Breeds on tundra of northern Canada and Alaska; winters on the Pacific coast from California to Mexico and Central America.
Mandarin Duck
Native to East Asia including eastern Russia, China, Japan, and Korea. Feral populations established in Britain and western Europe.
보전 상태
Lesser Whistling-duck
Mandarin Duck
How to Tell Them Apart
Lesser Whistling-duck
Warm chestnut-brown overall; head and neck brown; upperparts dark brown. Chestnut rump and upper-tail conspicuous in flight. Flanks chestnut with pale streaks. Bill and legs dark gray. 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
Lesser Whistling-duck
밤색 위꼬리덮깃, 엷은 얼굴, 어두운 갈색 머리를 가진 소형 따뜻한 갈색 홍따오기. 아시아에서 가장 널리 분포하고 흔한 홍따오기. 인도 아대륙에서 동남아시아까지 담수 습지에 서식. 나무 구멍과 가끔 초가지붕에 둥지를 튼다.
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.