American Black Duck vs Red-breasted Merganser
Anas rubripes 비교 대상 Mergus serrator
Side-by-Side Comparison
| 속성 | American Black Duck | Red-breasted Merganser |
|---|---|---|
| 학명 | Anas rubripes | Mergus serrator |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 53.4 cm (21.0 in) | 46.7 cm (18.4 in) |
| 체중 | 1211.25 g (42.73 oz) | 1058.3333333333333 g (37.33 oz) |
| 식성 | Eats fish and aquatic invertebrates; dives in coastal and freshwater habitats; diet shifts toward molluscs … | Dives for small fish, crustaceans, and aquatic invertebrates in coastal and freshwater habitats. Pursues fish … |
| 산란 수 | 1-17 | 6-14 |
| Population Trend | — | — |
Habitat Comparison
공유 서식지
American Black Duck only
Red-breasted Merganser only
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.
Red-breasted Merganser
Male produces a harsh, rasping series of notes; female gives a rough, guttural grunting. The harsh, rattling call is louder than Goosander; pairs and flocks create a rasping coastal cacophony.
Geographic Range & Migration
American Black Duck
Breeds in the steppe zone of Central Asia; winters in South Asia, East Africa, and coastal Southeast Asia.
Red-breasted Merganser
Circumpolar breeder in boreal and Arctic zones. Winters on coasts and large water bodies south to the Mediterranean and southern Asia.
보전 상태
American Black Duck
Red-breasted Merganser
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 …
Red-breasted Merganser
Male has dark green shaggy double crest, speckled chestnut breast band, white collar, and grey flanks; red bill. Female has rufous-brown head with ragged crest blending gradually into grey neck …
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.
Red-breasted Merganser
대형 물오리로 체장 52–58cm이며, 수컷은 광택 있는 초록 머리, 빨간 부리, 흰 목 고리, 갈색 가슴을 갖는다. 유라시아와 북아메리카의 해안, 강 하구, 호수에서 번식하고 해안에서 월동한다. 잠수하여 어류를 먹는다. 관심 필요 종이다.