Greater White-fronted Goose vs Common Pochard
Anser albifrons 비교 대상 Aythya ferina
Side-by-Side Comparison
| 속성 | Greater White-fronted Goose | Common Pochard |
|---|---|---|
| 학명 | Anser albifrons | Aythya ferina |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Vulnerable |
| 체장 | — | — |
| 날개 폭 | 81.6 cm (32.1 in) | 41.7 cm (16.4 in) |
| 체중 | 2471.0 g (87.16 oz) | 845.5 g (29.82 oz) |
| 식성 | Dabbles for aquatic invertebrates, seeds, and plant material; diet shifts heavily toward invertebrates in breeding … | Eats molluscs, crustaceans, and aquatic invertebrates; dives in shallow water; diet dominated by hard-shelled benthic … |
| 산란 수 | 3-9 | 3-22 |
| 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.
Common Pochard
Breeds on freshwater lakes and marshes with emergent vegetation across Eurasia from Iceland and western Europe east to Siberia. Winters on large open lakes, reservoirs, and estuaries.
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.
Common Pochard
Male emits a soft, wheezing purr; female gives a harsh, grating quacking series. The male's gentle, sibilant purring contrasts with the female's loud, grating call on European and Asian lakes.
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.
Common Pochard
Breeds across northern and central North America; winters in Mexico, Central America, and along both US coasts.
보전 상태
Greater White-fronted Goose
Common Pochard
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 …
Common Pochard
Males have chestnut-red head and neck; black breast; pale gray body; black undertail. Red eye. Blue-gray bill with dark base and tip. Females brown with pale face and eye-ring. Gray …
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.
Common Pochard
중간 크기의 잠수오리입니다. 수컷은 풍부한 밤색 빨간 머리, 검은 가슴, 연한 회색 몸통을 가지며 암컷은 창백한 얼굴의 갈색입니다. 유라시아 전역에 넓게 분포합니다. 개체수가 급격히 감소 중이며 유럽 적색목록에서 취약(VU) 종입니다.