Snow Goose vs Wandering Whistling-duck
Anser caerulescens 비교 대상 Dendrocygna arcuata
Side-by-Side Comparison
| 속성 | Snow Goose | Wandering Whistling-duck |
|---|---|---|
| 학명 | Anser caerulescens | Dendrocygna arcuata |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 82.4 cm (32.4 in) | 37.2 cm (14.6 in) |
| 체중 | 2561.0 g (90.34 oz) | 779.5 g (27.50 oz) |
| 식성 | Grazes submerged aquatic vegetation and eelgrass in estuaries; also takes grasses and sedges on coastal … | Eats grasses, sedges, and aquatic plants in tundra; winter diet of coastal salt marsh grasses … |
| 산란 수 | 2-6 | 6-15 |
| Population Trend | — | — |
Habitat Comparison
Snow Goose
Breeds on coastal and inland Arctic tundra in Canada, Alaska, and Greenland. Winters on agricultural fields, marshes, and coastal wetlands across the United States and northern Mexico. Forms enormous flocks.
Wandering Whistling-duck
Tropical freshwater marshes, flooded grasslands, swamps, and lake margins from the Philippines and Indonesia through Papua New Guinea to northern and eastern Australia. Nomadic following wet season flooding.
Song & Call Comparison
Snow Goose
A loud, nasal barking 'luk-luk' or 'kow-kow'. Large flocks create enormous noise during Arctic nesting and winter staging. Considered a noisy, conspicuous goose.
Wandering Whistling-duck
A soft whistle 'whi-whi-whi' in flight. Less vocal than other whistling-ducks; flocks tend to be quieter. Given at dawn and dusk during flight to roosting or feeding areas.
Geographic Range & Migration
Snow Goose
Breeds in eastern North America's boreal forest; winters on the Atlantic coast from New England to South Carolina.
Wandering Whistling-duck
Breeds in Arctic and subarctic regions; winters at sea around the Antarctic pack ice, one of the longest migrations known.
보전 상태
Snow Goose
Wandering Whistling-duck
How to Tell Them Apart
Snow Goose
Wandering Whistling-duck
Rich chestnut-brown head and neck; dark brown back. Flanks rufous with pale buff streaks and dark spots. Belly blackish. Long, dark pinkish legs. Upright posture typical of whistling-ducks. Sexes similar.
About These Birds
Snow Goose
눈 기러기는 캐나다 북극에서 번식하고 미국과 멕시코 만안에서 월동합니다. 두 가지 색형이 있는데 흰색형과 어두운 파란색 형이 있습니다. 농경지와 초원에서 대규모 무리를 이룹니다.
Wandering Whistling-duck
황갈색-갈색 몸통, 어두운 갈색 등, 엷은 황갈색 아랫면, 밤색 목깃을 가진 중형 홍따오기. 인도네시아에서 호주·태평양 섬까지 열대 습지에 서식. 매우 사회적이고 유목성. 얕은 담수에서 수면 채이기와 잠수로 채이며 먹이를 구한다.