Greater White-fronted Goose vs Silver Teal
Anser albifrons so với Spatula versicolor
Side-by-Side Comparison
| Thuộc Tính | Greater White-fronted Goose | Silver Teal |
|---|---|---|
| Tên Khoa Học | Anser albifrons | Spatula versicolor |
| Bộ | Anseriformes | Anseriformes |
| Họ | Anatidae | Anatidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 81,6 cm (32.1 in) | 37,0 cm (14.6 in) |
| Khối Lượng | 2471,0 g (87.16 oz) | 409,75 g (14.45 oz) |
| Chế Độ Ăn | Dabbles for aquatic invertebrates, seeds, and plant material; diet shifts heavily toward invertebrates in breeding … | Dabbles for seeds, aquatic plants, and invertebrates; diet varies with season; forages in shallow ponds … |
| Số Trứng | 3-9 | 6-10 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Greater White-fronted Goose only
Silver Teal only
Không
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.
Silver Teal
Freshwater wetlands, marshes, lakes, and flooded fields from sea level to 3,500 m in southern South America from Peru and Bolivia through Chile, Argentina, Uruguay, and southern Brazil.
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.
Silver Teal
Male produces a soft, nasal prrp note; female gives a subdued quack. Quiet vocalizations suit the species' secretive nature in South American reedy 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.
Silver Teal
Breeds in sub-Arctic Europe and western Russia; winters on coasts of Western Europe, the Mediterranean, and the Caspian Sea.
Tình Trạng Bảo Tồn
Greater White-fronted Goose
Silver Teal
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 …
Silver Teal
Black crown contrasting with white face and sides. Body pale silvery-gray with fine dark vermiculations. Bold yellow-and-black bill. Blue-gray forewing and iridescent green speculum in flight. Sexes similar.
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.
Silver Teal
A medium-sized teal with a striking black cap, white face, blue bill with yellow sides, and boldly spotted scaly-looking flanks. Widespread in lowland and mid-altitude South America. Often found in pairs or small groups. Feeds by dabbling in shallow water.