Fulvous Whistling-duck vs Mallard
Dendrocygna bicolor 비교 대상 Anas platyrhynchos
Side-by-Side Comparison
| 속성 | Fulvous Whistling-duck | Mallard |
|---|---|---|
| 학명 | Dendrocygna bicolor | Anas platyrhynchos |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | 58.0 cm (22.8 in) |
| 날개 폭 | 44.6 cm (17.6 in) | 90.0 cm (35.4 in) |
| 체중 | 733.4 g (25.87 oz) | 1100.0 g (38.80 oz) |
| 식성 | Grazes grasses and sedges in Arctic tundra; large migratory goose; winter diet dominated by agricultural … | Omnivorous — aquatic plants, seeds, insects, crustaceans, and mollusks. Feeds by dabbling, upending, and grazing … |
| 산란 수 | 6-16 | 4-18 |
| Population Trend | — | — |
Size Comparison
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.
Mallard
Nearly any wetland habitat including lakes, rivers, ponds, marshes, estuaries, and urban park ponds.
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.
Mallard
Female gives the classic 'quack-quack-quack', descending in pitch. Male utters soft nasal 'raeb-raeb'. Both give a high 'gag-gag-gag' when alarmed or taking flight.
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.
Mallard
Native across the Northern Hemisphere in North America, Europe, and Asia. Introduced to Australia and New Zealand.
보전 상태
Fulvous Whistling-duck
Mallard
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.
Mallard
Breeding males have an iridescent green head, white neck ring, chestnut breast, and grey body. Females are mottled brown. Both sexes show a blue speculum bordered by white.
Broad, flat bill — yellow-green in males, orange-brown in females
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.
Mallard
가장 잘 알려진 야생 오리로 체장 50–65cm이며, 수컷은 광택 있는 녹색 머리와 노란 부리, 자주빛 갈색 가슴, 흰색 목 고리를 갖는다. 북반구 전역과 호주에 귀화하여 온대 내지 아열대 습지, 호수, 강, 도시 공원에 서식한다. 잡식성으로 식물, 곤충, 작은 어류를 먹는다. 관심 필요 종이다.