Greater White-fronted Goose vs Ferruginous Duck
Anser albifrons 비교 대상 Aythya nyroca
Side-by-Side Comparison
| 속성 | Greater White-fronted Goose | Ferruginous Duck |
|---|---|---|
| 학명 | Anser albifrons | Aythya nyroca |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Near Threatened |
| 체장 | — | — |
| 날개 폭 | 81.6 cm (32.1 in) | 36.5 cm (14.4 in) |
| 체중 | 2471.0 g (87.16 oz) | 594.1666666666666 g (20.96 oz) |
| 식성 | Dabbles for aquatic invertebrates, seeds, and plant material; diet shifts heavily toward invertebrates in breeding … | -- |
| 산란 수 | 3-9 | 4-17 |
| Population Trend | — | — |
Habitat Comparison
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.
Ferruginous Duck
Freshwater lakes, marshes, and river deltas with dense emergent vegetation in southern Eurasia from central Europe east to Central Asia and China. Winters in the Mediterranean, South Asia, and sub-Saharan Africa.
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.
Ferruginous Duck
Male emits a soft, wheeling purr; female gives a harsh, rapid quacking series. The male's quiet purring display call contrasts with the female's repeated, grating notes on Mediterranean marshes.
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.
Ferruginous Duck
보전 상태
Greater White-fronted Goose
Ferruginous Duck
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 …
Ferruginous Duck
Rich chestnut-brown head, neck and breast; white undertail conspicuous. White eye in males (brown in females). Dark back. Bold white wing stripe in flight. Compact and rounded. Males brighter chestnut; …
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.
Ferruginous Duck
소형 날씬한 잠수오리입니다. 수컷은 풍부한 밤색 머리와 몸통, 흰 눈, 흰 아래꼬리를 가지며 암컷은 더 둔합니다. 유라시아와 아프리카 전역에 분포합니다. 지중해와 중앙아시아 호수에서 국지적으로 흔하며 개체수 감소 중. 전 세계적으로 준위협(NT) 종입니다.