Fulvous Whistling-duck vs Spotted Whistling-duck
Dendrocygna bicolor 비교 대상 Dendrocygna guttata
Side-by-Side Comparison
| 속성 | Fulvous Whistling-duck | Spotted Whistling-duck |
|---|---|---|
| 학명 | Dendrocygna bicolor | Dendrocygna guttata |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 44.6 cm (17.6 in) | 41.3 cm (16.3 in) |
| 체중 | 733.4 g (25.87 oz) | 677.5 g (23.90 oz) |
| 식성 | Grazes grasses and sedges in Arctic tundra; large migratory goose; winter diet dominated by agricultural … | Primarily herbivorous; grazes tundra grasses and sedges; winters on coastal marshes and farmland, switching to … |
| 산란 수 | 6-16 | 10-11 |
| Population Trend | — | — |
Habitat Comparison
Fulvous Whistling-duck
Freshwater marshes, rice paddies, flooded fields, shallow lakes, and river margins across warm tropical and subtropical regions of the Americas, Africa, and South Asia. Highly nomadic, following rains.
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
Fulvous Whistling-duck
A soft, rhythmic 'ka-WHEE-00' whistle. Flocks give continuous soft whistling sounds during flight over tropical wetlands. Also gives shorter 'kee' contact notes.
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
Fulvous Whistling-duck
Breeds across Eurasia from Iceland and western Europe to eastern Siberia; winters from Britain to the Mediterranean and South 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
Fulvous Whistling-duck
Spotted Whistling-duck
How to Tell Them Apart
Fulvous Whistling-duck
Warm fulvous-buff underparts with creamy white flank stripes. Upperparts dark brown with pale buff feather edges. Dark brown stripe down back of neck. Long bluish-gray legs. Sexes identical.
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
Fulvous Whistling-duck
따뜻한 황갈색-갈색 몸통, 어두운 갈색 등, 크림색-흰색 옆구리 줄무늬, 청회색 부리를 가진 중형 홍따오기. 모든 물새 중 가장 세계적으로 분포하는 종 중 하나로 북·남아메리카, 사하라 이남 아프리카, 남아시아에 분포. 계절적 강우를 따라 매우 유목성.
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.