Greater White-fronted Goose vs Ring-necked Duck
Anser albifrons مقارنةً بـ Aythya collaris
Side-by-Side Comparison
| السمة | Greater White-fronted Goose | Ring-necked Duck |
|---|---|---|
| الاسم العلمي | Anser albifrons | Aythya collaris |
| الرتبة | Anseriformes | Anseriformes |
| الفصيلة | Anatidae | Anatidae |
| حالة الحفاظ | Least Concern | Least Concern |
| الطول | — | — |
| طول الجناح | 81,6 cm (32.1 in) | 39,0 cm (15.4 in) |
| الوزن | 2471,0 g (87.16 oz) | 825,5 g (29.12 oz) |
| النظام الغذائي | Dabbles for aquatic invertebrates, seeds, and plant material; diet shifts heavily toward invertebrates in breeding … | Eats molluscs, crustaceans, and aquatic invertebrates; dives in shallow coastal water; diet dominated by benthic … |
| عدد البيض في الوضع | 3-9 | 6-14 |
| Population Trend | — | — |
Habitat Comparison
الموائل المشتركة
Greater White-fronted Goose only
Ring-necked Duck only
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.
Ring-necked Duck
Breeds on boreal lakes and bogs in North America from Alaska and Canada south to the northern United States. Winters on freshwater lakes, reservoirs, and marshes across the southern United States, Mexico, and Caribbean.
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.
Ring-necked Duck
Male produces a low, purring wheeze; female gives a harsh, rolling quack. The purring male call is understated; found on North American freshwater lakes; female calls are emphatic and nasal.
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.
Ring-necked Duck
Breeds in western Arctic Canada and Alaska; winters along the Pacific coast from Alaska to Baja California.
حالة الحفاظ
Greater White-fronted Goose
Ring-necked 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 …
Ring-necked Duck
Males black back and breast; gray flanks with white vertical mark near breast. Iridescent dark purple head with subtle chestnut neck ring. Bill blue-gray with white ring near tip. Females …
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.
Ring-necked Duck
A medium-sized diving duck. Males have a glossy black head and breast, white flank stripe, and a grey bill with a white ring near the tip; females are brown. Named for an inconspicuous brown neck ring. Common in North America. Dives for aquatic plants and invertebrates.