American Black Duck vs Maccoa Duck
Anas rubripes 비교 대상 Oxyura maccoa
Side-by-Side Comparison
| 속성 | American Black Duck | Maccoa Duck |
|---|---|---|
| 학명 | Anas rubripes | Oxyura maccoa |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Endangered |
| 체장 | — | — |
| 날개 폭 | 53.4 cm (21.0 in) | 31.3 cm (12.3 in) |
| 체중 | 1211.25 g (42.73 oz) | 685.3333333333334 g (24.17 oz) |
| 식성 | Eats fish and aquatic invertebrates; dives in coastal and freshwater habitats; diet shifts toward molluscs … | Dives for aquatic invertebrates and plant seeds in African lakes and marshes. Uses lobed feet … |
| 산란 수 | 1-17 | 4-12 |
| 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.
Maccoa Duck
Male emits a rapid, staccato drumming display; female gives a harsh, emphatic quack. The drumming call is powerful and diagnostic; this endangered southern African stiff-tail displays at dawn.
Geographic Range & Migration
American Black Duck
Breeds in the steppe zone of Central Asia; winters in South Asia, East Africa, and coastal Southeast Asia.
Maccoa Duck
Resident in eastern and southern Africa from Ethiopia and Kenya south to the Cape. Found on lakes and marshes with dense aquatic vegetation.
보전 상태
American Black Duck
Maccoa Duck
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 …
Maccoa Duck
Male has glossy black head, deep chestnut-red body, and vivid sky-blue bill; stiff tail often cocked. Female is dark brown above with streaked buff below and two pale facial stripes …
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.
Maccoa Duck
A stiff-tailed diving duck (~685 g) of sub-Saharan Africa, family Anatidae, males chestnut-bodied with a blue bill. Inhabits large, deep freshwater lakes and dams in eastern and southern Africa. Dives for aquatic invertebrates and vegetation. Endangered due to small, fragmented populations, habitat loss from wetland drainage, and competition with introduced species.