Greater White-fronted Goose vs Black-bellied Whistling-duck
Anser albifrons 비교 대상 Dendrocygna autumnalis
Side-by-Side Comparison
| 속성 | Greater White-fronted Goose | Black-bellied Whistling-duck |
|---|---|---|
| 학명 | Anser albifrons | Dendrocygna autumnalis |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 81.6 cm (32.1 in) | 48.2 cm (19.0 in) |
| 체중 | 2471.0 g (87.16 oz) | 757.9 g (26.73 oz) |
| 식성 | Dabbles for aquatic invertebrates, seeds, and plant material; diet shifts heavily toward invertebrates in breeding … | Grazes subarctic tundra grasses and sedges; winters on coastal salt marshes and agricultural fields eating … |
| 산란 수 | 3-9 | 9-18 |
| Population Trend | — | — |
Habitat Comparison
공유 서식지
Greater White-fronted Goose only
Black-bellied Whistling-duck only
없음
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.
Black-bellied Whistling-duck
Freshwater wetlands, ponds, lake margins, flooded fields, and wooded swamps from the southern United States and Mexico through Central America to Ecuador, Bolivia, and Argentina. Uses nest boxes readily.
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.
Black-bellied Whistling-duck
A high, reedy whistle 'pe-che-che-ne' given in flight. Flocks produce a continuous whistling chorus. Also gives a squeaky 'whe-eee' contact call while swimming.
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.
Black-bellied Whistling-duck
Inhabits freshwater marshes and riverbanks from southeastern Brazil to northern Argentina and Bolivia. Sedentary; locally common.
보전 상태
Greater White-fronted Goose
Black-bellied Whistling-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 …
Black-bellied Whistling-duck
Gray head with brown cap and chestnut breast; black belly is distinctive. Wings show broad white patch in flight. Coral-pink bill and long pink legs. Upright posture. Sexes similar.
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.
Black-bellied Whistling-duck
밝은 붉은 부리, 밤색-검은색 몸통, 넓은 흰 날개 줄무늬, 특유의 휘파람 소리 울음을 가진 뚜렷한 무늬의 홍따오기. 미국 남부에서 남아메리카 중부까지 담수 습지에서 흔하다. 나무 구멍에 둥지를 튼다. 종종 나무에 횃대를 잡는데—물새로서는 이례적.