Brazilian Teal vs American Black Duck
Amazonetta brasiliensis so với Anas rubripes
Side-by-Side Comparison
| Thuộc Tính | Brazilian Teal | American Black Duck |
|---|---|---|
| Tên Khoa Học | Amazonetta brasiliensis | Anas rubripes |
| Bộ | Anseriformes | Anseriformes |
| Họ | Anatidae | Anatidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 36,1 cm (14.2 in) | 53,4 cm (21.0 in) |
| Khối Lượng | 468,0 g (16.51 oz) | 1211,25 g (42.73 oz) |
| Chế Độ Ăn | Dabbles for aquatic invertebrates and seeds; diet shifts toward plant material outside breeding season; forages … | Eats fish and aquatic invertebrates; dives in coastal and freshwater habitats; diet shifts toward molluscs … |
| Số Trứng | 6-11 | 1-17 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Brazilian Teal only
American Black Duck only
Brazilian Teal
Freshwater lakes, marshes, rivers, flooded forest, and rice paddies across tropical and subtropical South America from Colombia and Venezuela south to northern Argentina. Tolerates natural and agricultural wetlands.
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
Brazilian Teal
Male produces a nasal, whistled wheee-oh note; female gives a short, sharp quack. Pairs call back and forth with clear whistled exchanges along Amazonian rivers.
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
Brazilian Teal
Breeds in Eurasia and winters in tropical regions from Africa to Southeast Asia. Migratory over broad fronts.
American Black Duck
Breeds in the steppe zone of Central Asia; winters in South Asia, East Africa, and coastal Southeast Asia.
Tình Trạng Bảo Tồn
Brazilian Teal
American Black Duck
How to Tell Them Apart
Brazilian Teal
Males have red bill and legs; brown body with dark brown back, gray head, buff-white face, and dark crown. Females have pale supercilium and paler face. Both show iridescent green …
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
Brazilian Teal
A small compact teal with brown plumage, red bill and legs, and males with a distinctive powder-blue speculum. Common in tropical lowland South America. One of the most widespread ducks in Brazil. Found in a wide range of wetland types from flooded forest to open lakes.
American Black Duck
A large dark brown dabbling duck closely resembling a very dark female Mallard, with purple speculum, yellowish-olive bill in males, and orange legs. Common in eastern North America. Hybridizes freely with Mallard; pure populations declining in the interior.