Greater White-fronted Goose vs American Wigeon
Anser albifrons เปรียบเทียบกับ Mareca americana
Side-by-Side Comparison
| คุณสมบัติ | Greater White-fronted Goose | American Wigeon |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Anser albifrons | Mareca americana |
| อันดับ | Anseriformes | Anseriformes |
| วงศ์ตระกูล | Anatidae | Anatidae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | — | — |
| กว้างปีก | 81.6 cm (32.1 in) | 50.6 cm (19.9 in) |
| น้ำหนัก | 2471.0 g (87.16 oz) | 938.125 g (33.09 oz) |
| อาหาร | Dabbles for aquatic invertebrates, seeds, and plant material; diet shifts heavily toward invertebrates in breeding … | -- |
| จำนวนไข่ | 3-9 | 3-12 |
| Population Trend | — | — |
Habitat Comparison
ถิ่นที่อยู่อาศัยร่วมกัน
Greater White-fronted Goose only
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American Wigeon only
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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.
American Wigeon
Breeds on freshwater lakes and marshes in boreal and northern forest of North America. Winters on coastal bays, estuaries, freshwater wetlands, and agricultural fields from the southern United States to Central America.
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.
American Wigeon
Male produces a three-note whew-whew-wheoo whistle; female gives a low grunting purr. The male's clear, looping whistle is distinctive on North American ponds and marshes.
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.
American Wigeon
สถานะการอนุรักษ์
Greater White-fronted Goose
American Wigeon
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 …
American Wigeon
Males have white forehead and crown; iridescent green eye patch; pinkish-buff breast; gray flanks; white belly. White forewing patch in flight. Females mottled brown-gray with gray head. Dimorphic.
About These Birds
Greater White-fronted Goose
A medium-large goose with a white forehead patch, orange bill, grey-brown plumage, and variable black barring on the belly. Widespread and numerous; one of the most abundant geese in the world. Breeds across the high Arctic; winters in a wide range of temperate wetland and agricultural habitats.
American Wigeon
A medium-sized duck. Males have a creamy-white forehead blaze, broad green eye-stripe, pink-brown body, and white shoulder patch; females are warm brown. Common in North America; winters in coastal wetlands and agricultural land. Grazes on grass and aquatic plants.