Greater White-fronted Goose vs Madagascar Pochard
Anser albifrons 비교 대상 Aythya innotata
Side-by-Side Comparison
| 속성 | Greater White-fronted Goose | Madagascar Pochard |
|---|---|---|
| 학명 | Anser albifrons | Aythya innotata |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Critically Endangered |
| 체장 | — | — |
| 날개 폭 | 81.6 cm (32.1 in) | 37.4 cm (14.7 in) |
| 체중 | 2471.0 g (87.16 oz) | 685.0 g (24.16 oz) |
| 식성 | Dabbles for aquatic invertebrates, seeds, and plant material; diet shifts heavily toward invertebrates in breeding … | -- |
| 산란 수 | 3-9 | 6-10 |
| 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.
Madagascar Pochard
Restricted to Lake Matsaborimena in the highlands of northern Madagascar at about 1,500 m altitude. Uses deep-water mountain lakes with aquatic vegetation. Critically Endangered; tiny wild population.
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.
Madagascar Pochard
Critically Endangered; produces a soft, Aythya-like purring and grating quacking. Calls are not well-documented; likely similar to closely related Ferruginous Duck based on phylogeny.
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.
Madagascar Pochard
보전 상태
Greater White-fronted Goose
Madagascar 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 …
Madagascar Pochard
Males have brown head and neck; dark brown back; pale gray flanks with white undertail. White eye. Blue-gray bill. Females browner with pale face patch and brown eye. Critically endangered; …
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.
Madagascar Pochard
세계에서 가장 희귀한 오리 중 하나로, 2006년 재발견 전까지 멸종된 것으로 여겨졌습니다. 수컷에 흰 눈이 있는 소형 갈색 포차드입니다. 마다가스카르의 매우 작은 고산 호수에서 발견됩니다. 극심위기(CR) 종으로, 극소수 야생 개체군을 보전하기 위한 집중적인 보전 노력이 진행 중입니다.