Yellow-billed Teal vs Brent Goose
Anas flavirostris 비교 대상 Branta bernicla
Side-by-Side Comparison
| 속성 | Yellow-billed Teal | Brent Goose |
|---|---|---|
| 학명 | Anas flavirostris | Branta bernicla |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 38.2 cm (15.0 in) | 63.9 cm (25.2 in) |
| 체중 | 609.0 g (21.48 oz) | 1335.0 g (47.09 oz) |
| 식성 | Dives for molluscs, crustaceans, and aquatic invertebrates in coastal and freshwater habitats; diet dominated by … | Primarily herbivorous; grazes aquatic plants, grasses, and sedges; swans upend in shallow water for submerged … |
| 산란 수 | 5-13 | 1-10 |
| Population Trend | — | — |
Habitat Comparison
Yellow-billed Teal
Freshwater lakes, marshes, rivers, and bogs from sea level to 4,500 m across South America from Colombia and Venezuela south to Tierra del Fuego. Common at high-altitude Andean lakes and puna wetlands.
Brent Goose
Breeds on high-Arctic tundra; winters on estuaries, coastal mudflats, saltmarshes, and sea-grass beds along Atlantic and Pacific coastlines. One of the most strictly coastal wintering geese.
Song & Call Comparison
Yellow-billed Teal
Male utters a high-pitched, clear whistle; female gives a soft, muffled quack. Quiet calls suit the high-altitude Andean wetlands where this teal forages in shallow freshwater.
Brent Goose
A low, guttural 'rronk' or 'ronk-ronk' from flocks. Soft nasal calls in feeding groups. A subtle, understated call for a goose — less loud than most Anser geese.
Geographic Range & Migration
Yellow-billed Teal
Breeds in northern Canada and Alaska; winters on the Atlantic coast from Labrador to South Carolina and in Chesapeake Bay.
Brent Goose
Breeds across boreal and subarctic Canada and Alaska; winters in the southern United States, Mexico, and Central America.
보전 상태
Yellow-billed Teal
Brent Goose
How to Tell Them Apart
Yellow-billed Teal
Brownish-gray body finely mottled with dark spots. Diagnostic bright yellow bill with dark culmen stripe. Speculum iridescent green. Head grayish-brown, slightly darker crown. Sexes similar. Andean and Patagonian lakes.
Brent Goose
Small; mostly black head, neck, and breast. Small white neck-patch on adults. Back dark brownish-gray; belly pale gray to white depending on subspecies. White undertail coverts. Sexes similar.
About These Birds
Yellow-billed Teal
노란부리 오리 또는 틸 오리는 남아메리카의 안데스 산맥과 파타고니아에 서식하는 소형 오리입니다. 수컷과 암컷이 비슷하게 생겼으며, 특징적인 노란색 부리와 갈색의 줄무늬 깃털을 가지고 있습니다.
Brent Goose
검은 머리와 목, 작은 흰 목 반점, 연한 회색 배를 가진 작은 어두운 몸통의 기러기입니다. 고위도 북극 번식지와 온대 해안 월동지 사이를 이동합니다. 겨울에 잘피와 염습지 식생을 먹습니다. 세 아종이 배 색상이 다릅니다.