Greater White-fronted Goose vs Baer's Pochard
Anser albifrons 비교 대상 Aythya baeri
Side-by-Side Comparison
| 속성 | Greater White-fronted Goose | Baer's Pochard |
|---|---|---|
| 학명 | Anser albifrons | Aythya baeri |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Critically Endangered |
| 체장 | — | — |
| 날개 폭 | 81.6 cm (32.1 in) | 40.4 cm (15.9 in) |
| 체중 | 2471.0 g (87.16 oz) | 707.25 g (24.95 oz) |
| 식성 | Dabbles for aquatic invertebrates, seeds, and plant material; diet shifts heavily toward invertebrates in breeding … | -- |
| 산란 수 | 3-9 | 6-13 |
| 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.
Baer's Pochard
Breeds on lakes and rivers in boreal forests of eastern Siberia and northeastern China. Winters on freshwater lakes and wetlands in eastern and southeastern Asia. Critically Endangered; tiny remaining 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.
Baer's Pochard
Male gives a low, grating wheeze; female produces a harsh quacking series. Calls resemble Tufted Duck but slightly softer; among the rarest duck calls in East Asia due to its …
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.
Baer's Pochard
보전 상태
Greater White-fronted Goose
Baer's 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 …
Baer's Pochard
Males have dark glossy greenish-black head; chestnut breast; white flanks and undertail. White eye. Females brown with chestnut breast and pale face patch. White wing stripe in flight. 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.
Baer's Pochard
중간 크기의 잠수오리입니다. 수컷은 광택 녹흑색 머리, 밤색 가슴, 흰 옆구리를 가지며 암컷은 갈색입니다. 극심위기(CR) 종으로, 아시아에서 가장 빠르게 감소하는 오리 중 하나입니다. 동시베리아에서 번식하며 중국 동부와 동남아시아에서 월동합니다. 사냥으로 위협받고 있습니다.