Greater White-fronted Goose vs Velvet Scoter
Anser albifrons 비교 대상 Melanitta fusca
Side-by-Side Comparison
| 속성 | Greater White-fronted Goose | Velvet Scoter |
|---|---|---|
| 학명 | Anser albifrons | Melanitta fusca |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Vulnerable |
| 체장 | — | — |
| 날개 폭 | 81.6 cm (32.1 in) | 51.8 cm (20.4 in) |
| 체중 | 2471.0 g (87.16 oz) | 1635.1666666666667 g (57.68 oz) |
| 식성 | Dabbles for aquatic invertebrates, seeds, and plant material; diet shifts heavily toward invertebrates in breeding … | Dives for mussels, cockles, and crustaceans in coastal and brackish waters. Freshwater insects taken on … |
| 산란 수 | 3-9 | 7-9 |
| Population Trend | — | — |
Habitat Comparison
공유 서식지
Greater White-fronted Goose only
없음
Velvet Scoter only
Greater White-fronted Goose
Breeds on Arctic and subarctic tundra and peatlands. Winters on estuaries, agricultural fields, freshwater marshes, and flooded meadows across Europe, Asia, and North America. One of the most widespread geese.
Song & Call Comparison
Greater White-fronted Goose
A loud, laughing 'kow-lyuk' or musical 'wah-wah'. Gives a distinctive high-pitched yodeling quality lacking in Greylag. Highly vocal in large winter flocks.
Velvet Scoter
Male emits a low, melodious whistled note; female produces a guttural, rasping call. The male's soft whistle contrasts with the female's harsh, buzzy alarm call on European coasts.
Geographic Range & Migration
Greater White-fronted Goose
Breeds in the potholes region of the northern Great Plains; winters in the southern United States and along the Gulf Coast.
Velvet Scoter
Breeds in boreal forests of northern Europe and western Siberia. Winters on coasts of northwestern Europe, the Black Sea, and Caspian Sea.
보전 상태
Greater White-fronted Goose
Velvet Scoter
How to Tell Them Apart
Greater White-fronted Goose
Brown-gray body with white forehead patch bordered by white band at bill base. Underparts with bold irregular black bars on belly. Orange bill; orange-yellow legs. Juveniles lack white front and …
Velvet Scoter
Male is jet black overall with a small white teardrop below eye and white speculum visible in flight; yellow-sided bill with black knob at base. Female is dark brown with …
About These Birds
Greater White-fronted Goose
흰이마기러기는 북극 툰드라에서 번식하고 온대 지역에서 월동하는 기러기입니다. 성체의 흰 이마와 오렌지색 다리가 특징이며, 농경지와 초원에서 풀과 곡물을 먹습니다.
Velvet Scoter
대형 해오리로 체장 51–58cm이며, 수컷은 전신이 검은색에 흰 눈 반점, 흰 날개 반점, 오렌지색 부리를 갖는다. 유라시아 북부의 호수와 습지에서 번식하고 유럽과 아시아 해안에서 월동한다. 잠수하여 연체동물과 갑각류를 먹는다. 취약한 상태이다.