Bufflehead vs Spotted Whistling-duck
Bucephala albeola 비교 대상 Dendrocygna guttata
Side-by-Side Comparison
| 속성 | Bufflehead | Spotted Whistling-duck |
|---|---|---|
| 학명 | Bucephala albeola | Dendrocygna guttata |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 32.2 cm (12.7 in) | 41.3 cm (16.3 in) |
| 체중 | 400.5 g (14.13 oz) | 677.5 g (23.90 oz) |
| 식성 | Dives for aquatic insects, crustaceans, and small molluscs in freshwater and coastal habitats. One of … | Primarily herbivorous; grazes tundra grasses and sedges; winters on coastal marshes and farmland, switching to … |
| 산란 수 | 5-14 | 10-11 |
| 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.
Song & Call Comparison
Bufflehead
Male produces a soft, squeaky whistle; female gives a harsh, nasal quack. The male's thin, reedy whistle is barely audible; pairs exchange quiet contact calls at boreal forest ponds.
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
Bufflehead
Breeds in boreal forest of western and central North America. Winters along both coasts and interior lakes from southern Canada south to Mexico.
Spotted Whistling-duck
Ranges widely across sub-Saharan Africa in open woodland and savanna. Largely sedentary with local seasonal movements to water.
보전 상태
Bufflehead
Spotted Whistling-duck
How to Tell Them Apart
Bufflehead
Male has iridescent green-purple head with a large triangular white patch from behind eye over crown; body clean white except for black back. Female is dark sooty-brown with a single …
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
Bufflehead
북미에서 가장 작은 잠수오리(약 400g)로, 수컷은 큰 흰 머리 반점이 있는 자줏빛 녹색 홍채를 가집니다. 딱따구리 구멍에 둥지를 틀어 연못과 호수 근처 삼림 지역에서 번식하며, 해안 만과 내륙 수역에서 월동합니다. 수생 무척추동물과 소형 물고기를 먹습니다. 안정적 개체수의 관심대상 종입니다.
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.