Spotted Whistling-duck vs Chiloe Wigeon
Dendrocygna guttata 비교 대상 Mareca sibilatrix
Side-by-Side Comparison
| 속성 | Spotted Whistling-duck | Chiloe Wigeon |
|---|---|---|
| 학명 | Dendrocygna guttata | Mareca sibilatrix |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 41.3 cm (16.3 in) | 49.0 cm (19.3 in) |
| 체중 | 677.5 g (23.90 oz) | 922.8333333333334 g (32.55 oz) |
| 식성 | Primarily herbivorous; grazes tundra grasses and sedges; winters on coastal marshes and farmland, switching to … | Dabbles for seeds and aquatic invertebrates; diet varies between plant matter and invertebrates seasonally in … |
| 산란 수 | 10-11 | 2-13 |
| Population Trend | — | — |
Habitat Comparison
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.
Chiloe Wigeon
Lakes, rivers, freshwater marshes, and coastal lagoons in southern South America from southern Peru and Bolivia south through Chile and Argentina to Tierra del Fuego and the Falkland Islands.
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.
Chiloe Wigeon
Male utters a short, melodious whistle; female gives a low purring note. Pairs and flocks call with clear piping exchanges across South American wetlands and coastal lagoons.
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.
Chiloe Wigeon
Found across Australia, New Guinea, Indonesia, and the Philippines. Nomadic in drier areas; resident in well-watered regions.
보전 상태
Spotted Whistling-duck
Chiloe Wigeon
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.
Chiloe Wigeon
Iridescent dark green head with white forehead blaze. Black and white barred flanks; rufous breast; white belly. White forewing patch. Legs blue-gray. Females similar but duller. South American temperate species.
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.
Chiloe Wigeon
중간 크기의 오리로 체장 46–54cm이며, 수컷은 진한 초록색 머리에 크림색 이마, 갈색 가슴을 갖는다. 남아메리카 남부의 초지 습지와 호수에 서식하며, 풀과 수생식물을 뜯어 먹는다. 관심 필요 종이다.