Greater White-fronted Goose vs Common Shelduck
Anser albifrons comparé à Tadorna tadorna
Side-by-Side Comparison
| Attribut | Greater White-fronted Goose | Common Shelduck |
|---|---|---|
| Nom scientifique | Anser albifrons | Tadorna tadorna |
| Ordre | Anseriformes | Anseriformes |
| Famille | Anatidae | Anatidae |
| Statut de conservation | Least Concern | Least Concern |
| Longueur | — | — |
| Envergure | 81,6 cm (32.1 in) | 62,8 cm (24.7 in) |
| Poids | 2471,0 g (87.16 oz) | 1035,5 g (36.53 oz) |
| Régime alimentaire | Dabbles for aquatic invertebrates, seeds, and plant material; diet shifts heavily toward invertebrates in breeding … | -- |
| Taille de la couvée | 3-9 | 3-18 |
| Population Trend | — | — |
Habitat Comparison
Habitats partagés
Greater White-fronted Goose only
Common Shelduck 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.
Common Shelduck
Coastal estuaries, mudflats, saltmarshes, sand dunes, and inland saline lakes from northwest Europe east across Eurasia to China. Winters mainly on tidal estuaries and coastal wetlands. Nests in burrows.
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.
Common Shelduck
Male gives a whistled 'wheee'; female gives a cackling series of rapid nasal 'ak-ak-ak' notes. One of the most sexually dimorphic calls of any shelduck species.
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.
Common Shelduck
Breeds in Siberian tundra; winters in eastern and southern Africa, and in South and Southeast Asia. Trans-hemispheric migrant.
Statut de conservation
Greater White-fronted Goose
Common 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 …
Common Shelduck
White body with dark green head, broad chestnut breastband, and black scapular stripes. Red bill with basal knob in males. Green speculum and black wingtips. Underparts white with black belly …
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.
Common Shelduck
A large distinctive shelduck with a white body, dark green head, broad chestnut breast band, and a bright red bill with a knob in males. Common along European and Asian coasts and estuaries. Nests in rabbit burrows or hollow trees. Large moult migrations concentrate in Germany's Wadden Sea.