Spotted Whistling-duck vs White-faced Whistling-duck
Dendrocygna guttata 비교 대상 Dendrocygna viduata
Side-by-Side Comparison
| 속성 | Spotted Whistling-duck | White-faced Whistling-duck |
|---|---|---|
| 학명 | Dendrocygna guttata | Dendrocygna viduata |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 41.3 cm (16.3 in) | 42.9 cm (16.9 in) |
| 체중 | 677.5 g (23.90 oz) | 689.5 g (24.32 oz) |
| 식성 | Primarily herbivorous; grazes tundra grasses and sedges; winters on coastal marshes and farmland, switching to … | Grazes subarctic tundra grasses and sedges; winters on coastal salt marshes eating saltmarsh grasses and … |
| 산란 수 | 10-11 | 4-16 |
| Population Trend | — | — |
Habitat Comparison
공유 서식지
Spotted Whistling-duck only
White-faced Whistling-duck only
없음
Spotted Whistling-duck
Freshwater wetlands, rice fields, streams, and forest pools in New Guinea, Sulawesi, the Philippines, and Moluccas. Often found near forested rivers and seasonal swamps at low elevations.
White-faced Whistling-duck
Freshwater lakes, marshes, rice paddies, flooded fields, and slow-moving rivers in sub-Saharan Africa and tropical South America. Tolerates a wide range of modified wetlands. Nomadic, following water availability.
Song & Call Comparison
Spotted Whistling-duck
A musical, high whistle similar to other whistling-ducks. Call is softer and less far-carrying than White-faced or Black-bellied species. Given in flight and on water.
White-faced Whistling-duck
A clear, 3-syllable whistle 'wee-wee-WEE' — the origin of 'whistling-duck'. Given in noisy flocks during flight. Also gives a softer 'de-de-de' contact call on water.
Geographic Range & Migration
Spotted Whistling-duck
Ranges widely across sub-Saharan Africa in open woodland and savanna. Largely sedentary with local seasonal movements to water.
White-faced Whistling-duck
Found in floodplains and wetlands of the Llanos in Venezuela and eastern Colombia. Sedentary and locally nomadic in wet savannas.
보전 상태
Spotted Whistling-duck
White-faced Whistling-duck
How to Tell Them Apart
Spotted Whistling-duck
Dark brown above; head and neck dark brown. Underparts heavily spotted white on dark brown ground, giving spotted appearance. Flanks with bold white spots. Pink-red bill and legs. Sexes similar.
White-faced Whistling-duck
Distinctive white face and throat contrasting with black hindneck. Breast chestnut; sides and flanks barred black and white. Back brown. Long gray legs. Sexes identical; upright whistling-duck posture.
About These Birds
Spotted Whistling-duck
옆구리에 굵은 흰 반점, 주황-붉은 부리와 다리, 엷은 얼굴을 가진 소형 어두운 갈색 홍따오기. 뉴기니·필리핀·인도네시아의 열대 습지에 서식. 종종 담수 개울과 침수 초원 근처에서 발견. 다른 홍따오기보다 덜 사회적.
White-faced Whistling-duck
눈에 띄는 흰 얼굴, 밤색 몸통, 줄무늬 옆구리, 독특한 세 음의 휘파람 소리를 가진 키 크고 우아하게 생긴 홍따오기. 사하라 이남 아프리카·남아메리카에 널리 분포. 담수 지점에 큰 소란스러운 무리를 이룬다. 매우 사회적; 집단으로 쉬고 둥지를 튼다.