American Black Duck vs Spotted Whistling-duck
Anas rubripes 비교 대상 Dendrocygna guttata
Side-by-Side Comparison
| 속성 | American Black Duck | Spotted Whistling-duck |
|---|---|---|
| 학명 | Anas rubripes | Dendrocygna guttata |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 53.4 cm (21.0 in) | 41.3 cm (16.3 in) |
| 체중 | 1211.25 g (42.73 oz) | 677.5 g (23.90 oz) |
| 식성 | Eats fish and aquatic invertebrates; dives in coastal and freshwater habitats; diet shifts toward molluscs … | Primarily herbivorous; grazes tundra grasses and sedges; winters on coastal marshes and farmland, switching to … |
| 산란 수 | 1-17 | 10-11 |
| Population Trend | — | — |
Habitat Comparison
공유 서식지
American Black Duck only
Spotted Whistling-duck only
American Black Duck
Freshwater and brackish wetlands in eastern North America from Atlantic Canada south along the coast to Georgia. Breeds in northern bogs and wetlands. Winters on coastal marshes, estuaries, and freshwater lakes.
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.
Song & Call Comparison
American Black Duck
Female produces a loud, deep quacking series; male gives a low, raspy grunt. Voice is deeper and huskier than a Mallard; pairs call powerfully across northeastern North American wetlands.
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.
Geographic Range & Migration
American Black Duck
Breeds in the steppe zone of Central Asia; winters in South Asia, East Africa, and coastal Southeast Asia.
Spotted Whistling-duck
Ranges widely across sub-Saharan Africa in open woodland and savanna. Largely sedentary with local seasonal movements to water.
보전 상태
American Black Duck
Spotted Whistling-duck
How to Tell Them Apart
American Black Duck
Sooty dark brown body; head and neck paler buff with dark streaking. Iridescent purple speculum without white border. Males have yellow-green bill; females olive with orange blotches. Silvery underwings in …
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.
About These Birds
American Black Duck
아메리카 검정 오리는 북아메리카 동부에 서식하는 중간 크기의 오리로, 말라드와 매우 유사하지만 전체적으로 더 어둡고 뚜렷한 보라색 날개 거울을 가지고 있습니다.
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.