Greater White-fronted Goose vs South African Shelduck
Anser albifrons 비교 대상 Tadorna cana
Side-by-Side Comparison
| 속성 | Greater White-fronted Goose | South African Shelduck |
|---|---|---|
| 학명 | Anser albifrons | Tadorna cana |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 81.6 cm (32.1 in) | 69.0 cm (27.2 in) |
| 체중 | 2471.0 g (87.16 oz) | 1323.6666666666667 g (46.69 oz) |
| 식성 | Dabbles for aquatic invertebrates, seeds, and plant material; diet shifts heavily toward invertebrates in breeding … | Eats seeds, aquatic plants, and invertebrates; dabbles in shallow water; diet more invertebrate-heavy in breeding … |
| 산란 수 | 3-9 | 4-11 |
| Population Trend | — | — |
Habitat Comparison
공유 서식지
Greater White-fronted Goose only
South African Shelduck 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.
South African Shelduck
Inland freshwater and saline lakes, pans, dams, and rivers across southern Africa, primarily on the South African plateau, Lesotho, and Namibia. Nests in burrows dug by aardvark. Highly terrestrial for a shelduck.
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.
South African Shelduck
Male gives a whistled 'wheeu'; female gives a harsh, descending cackle. Calls from South African wetlands and vleis. Sexual dimorphism in call is strong.
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.
South African Shelduck
Breeds in subarctic Eurasia and winters in sub-Saharan Africa, the Indian subcontinent, and Southeast Asia.
보전 상태
Greater White-fronted Goose
South African Shelduck
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 …
South African Shelduck
Males have gray head and neck; rufous-brown body with white wing coverts and green speculum. Females similar but with white facial markings around bill and eye. Body rich rufous-chestnut. Endemic …
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.
South African Shelduck
A large shelduck with a grey head in males or white-and-grey head with white facial patches in females, orange-brown body, and white wing coverts. Endemic to southern Africa. Common on inland freshwater and saline lakes across South Africa's interior plateau.