Common Goldeneye vs Spotted Whistling-duck
Bucephala clangula 비교 대상 Dendrocygna guttata
Side-by-Side Comparison
| 속성 | Common Goldeneye | Spotted Whistling-duck |
|---|---|---|
| 학명 | Bucephala clangula | Dendrocygna guttata |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 41.7 cm (16.4 in) | 41.3 cm (16.3 in) |
| 체중 | 921.0 g (32.49 oz) | 677.5 g (23.90 oz) |
| 식성 | Dives for aquatic invertebrates, crustaceans, molluscs, and small fish. Forages in lakes, rivers, and coastal … | Primarily herbivorous; grazes tundra grasses and sedges; winters on coastal marshes and farmland, switching to … |
| 산란 수 | 1-28 | 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
Common Goldeneye
Male emits a buzzy, insect-like zeee-zeee-zeee wing whistle; female gives a grating quack. The mechanical wing-whistle produced by the male in display flight is the species' most distinctive sound.
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
Common Goldeneye
Breeds across boreal forests of North America, Europe, and Asia. Winters on coasts and large lakes south to the Mediterranean and the Gulf states.
Spotted Whistling-duck
Ranges widely across sub-Saharan Africa in open woodland and savanna. Largely sedentary with local seasonal movements to water.
보전 상태
Common Goldeneye
Spotted Whistling-duck
How to Tell Them Apart
Common Goldeneye
Male has glossy green-black head with round white spot at bill base; body white with black back and scapulars; yellow eye. Female has chocolate-brown head, white collar, and grey body.
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
Common Goldeneye
수컷은 이리데슨트 녹색 머리와 둥근 흰 뺨 반점을 가진 중간 크기의 잠수오리(약 920g)입니다. 유라시아와 북미 전역의 나무 구멍에 둥지를 틀어 아한대 호수와 강 근처에서 번식하며 해안 및 내륙 수역에서 월동합니다. 무척추동물, 물고기, 식물 재료를 잠수하여 먹습니다. 넓게 분포하는 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.