Southern Pintail vs American Black Duck
Anas eatoni 비교 대상 Anas rubripes
Side-by-Side Comparison
| 속성 | Southern Pintail | American Black Duck |
|---|---|---|
| 학명 | Anas eatoni | Anas rubripes |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Vulnerable | Least Concern |
| 체장 | — | — |
| 날개 폭 | 40.6 cm (16.0 in) | 53.4 cm (21.0 in) |
| 체중 | 497.0 g (17.53 oz) | 1211.25 g (42.73 oz) |
| 식성 | Dives for molluscs, crustaceans, and aquatic invertebrates; eats hard-shelled prey; diet shifts between freshwater and … | -- |
| 산란 수 | 2-6 | 1-17 |
| Population Trend | — | — |
Habitat Comparison
Southern Pintail
Restricted to the sub-Antarctic Kerguelen and Crozet archipelagos. Inhabits freshwater streams, ponds, and coastal wetlands. Largely terrestrial for a duck; forages on land among tussock grasses.
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
Southern Pintail
Female produces a quiet, nasal quacking; male gives a soft whistle. Subdued vocalizations suit this sub-Antarctic island duck; calls are seldom heard and rarely documented.
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.
Geographic Range & Migration
Southern Pintail
Breeds in Iceland and high-Arctic Norway; winters on the coasts of northwestern Europe and the British Isles.
American Black Duck
보전 상태
Southern Pintail
American Black Duck
How to Tell Them Apart
Southern Pintail
Brown, mottled plumage; head brown with pale cheeks. Pointed tail; males slightly longer-tailed. Grayish bill. Speculum bronze-green. Sexes similar with modest dimorphism. Subantarctic island endemic; two subspecies.
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 …
About These Birds
Southern Pintail
이튼 오리 또는 케르겔렌 오리라고도 불리는 이 종은 남인도양의 케르겔렌 제도와 크로제 제도에 서식하는 소형 오리입니다. 갈색 깃털과 짧은 날개를 가지고 있으며, 비행 능력이 매우 제한되어 있습니다.
American Black Duck
아메리카 검정 오리는 북아메리카 동부에 서식하는 중간 크기의 오리로, 말라드와 매우 유사하지만 전체적으로 더 어둡고 뚜렷한 보라색 날개 거울을 가지고 있습니다.