Greater White-fronted Goose vs Black Scoter
Anser albifrons comparé à Melanitta americana
Side-by-Side Comparison
| Attribut | Greater White-fronted Goose | Black Scoter |
|---|---|---|
| Nom scientifique | Anser albifrons | Melanitta americana |
| Ordre | Anseriformes | Anseriformes |
| Famille | Anatidae | Anatidae |
| Statut de conservation | Least Concern | Near Threatened |
| Longueur | — | — |
| Envergure | 81,6 cm (32.1 in) | 44,0 cm (17.3 in) |
| Poids | 2471,0 g (87.16 oz) | 1046,1 g (36.90 oz) |
| Régime alimentaire | Dabbles for aquatic invertebrates, seeds, and plant material; diet shifts heavily toward invertebrates in breeding … | Dives for molluscs, particularly mussels and clams, in coastal waters. Takes aquatic insects and plant … |
| Taille de la couvée | 3-9 | 5-11 |
| Population Trend | — | — |
Habitat Comparison
Habitats partagés
Greater White-fronted Goose only
Black Scoter only
Aucun(e)
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.
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 Scoter
Male produces a low, melodious whistle; female gives a harsh, grating call. Closely related to Common Scoter; voice very similar; heard on North American Pacific and Atlantic coasts in winter.
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 Scoter
Breeds in boreal forests and tundra of Alaska and northern Canada. Winters along Pacific and Atlantic coasts south to Baja California and Florida.
Statut de conservation
Greater White-fronted Goose
Black Scoter
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 Scoter
Male is pure glossy black throughout with a prominent bright orange-yellow knob at bill base. Female is dark sooty-brown with pale buff cheeks and foreneck contrasting with darker cap and …
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.
Black Scoter
A medium-sized sea duck (~1 kg) in family Anatidae, males entirely black with a bold orange-yellow knob at the bill base. Breeds on boreal and tundra lakes of North America and eastern Russia; winters coastally. Dives for mollusks and crustaceans. Near Threatened following population declines linked to habitat loss on breeding grounds.