American Black Duck vs Common Goldeneye
Anas rubripes 비교 대상 Bucephala clangula
Side-by-Side Comparison
| 속성 | American Black Duck | Common Goldeneye |
|---|---|---|
| 학명 | Anas rubripes | Bucephala clangula |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 53.4 cm (21.0 in) | 41.7 cm (16.4 in) |
| 체중 | 1211.25 g (42.73 oz) | 921.0 g (32.49 oz) |
| 식성 | Eats fish and aquatic invertebrates; dives in coastal and freshwater habitats; diet shifts toward molluscs … | Dives for aquatic invertebrates, crustaceans, molluscs, and small fish. Forages in lakes, rivers, and coastal … |
| 산란 수 | 1-17 | 1-28 |
| Population Trend | — | — |
Habitat Comparison
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.
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.
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.
Geographic Range & Migration
American Black Duck
Breeds in the steppe zone of Central Asia; winters in South Asia, East Africa, and coastal Southeast Asia.
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.
보전 상태
American Black Duck
Common Goldeneye
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 …
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.
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.
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.