American Black Duck vs Tundra Bean Goose
Anas rubripes 비교 대상 Anser serrirostris
Side-by-Side Comparison
| 속성 | American Black Duck | Tundra Bean Goose |
|---|---|---|
| 학명 | Anas rubripes | Anser serrirostris |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Not Evaluated |
| 체장 | — | — |
| 날개 폭 | 53.4 cm (21.0 in) | — |
| 체중 | 1211.25 g (42.73 oz) | 2540.0 g (89.60 oz) |
| 식성 | -- | -- |
| 산란 수 | 1-17 | 3-8 |
| 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.
Tundra Bean Goose
Breeds on Arctic and subarctic tundra in Siberia. Winters on agricultural land, river floodplains, and wetlands in eastern China, Japan, and Korea, with some wintering in western Europe.
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.
Tundra Bean Goose
A nasal, lower call compared to Taiga Bean Goose. Considered subspecifically or specifically distinct; vocalizations are an active taxonomic tool for separation in mixed flocks.
보전 상태
American Black Duck
Tundra Bean Goose
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 …
Tundra Bean Goose
Dark brown head and neck; grayish-brown back with pale feather fringing. Underparts pale gray-brown. Orange-yellow legs. Bill black with orange subterminal band. Recently split from Taiga Bean Goose.
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.
Tundra Bean Goose
두꺼운부리 기러기는 시베리아와 캄차카에서 번식하고 중국에서 월동합니다. 이전에 콩 기러기의 아종으로 분류되었으며, 더 크고 두꺼운 부리와 다른 울음소리로 구별됩니다.