Greater White-fronted Goose vs Masked Duck
Anser albifrons в сравнении с Nomonyx dominicus
Side-by-Side Comparison
| Характеристика | Greater White-fronted Goose | Masked Duck |
|---|---|---|
| Научное название | Anser albifrons | Nomonyx dominicus |
| Отряд | Anseriformes | Anseriformes |
| Семейство | Anatidae | Anatidae |
| Охранный статус | Least Concern | Least Concern |
| Длина | — | — |
| Размах крыльев | 81,6 cm (32.1 in) | 27,6 cm (10.9 in) |
| Масса | 2471,0 g (87.16 oz) | 361,0 g (12.73 oz) |
| Питание | Dabbles for aquatic invertebrates, seeds, and plant material; diet shifts heavily toward invertebrates in breeding … | Dives and dabbles for aquatic seeds, plant matter, and invertebrates in freshwater marshes and ponds … |
| Размер кладки | 3-9 | 4-6 |
| Population Trend | — | — |
Habitat Comparison
Общие среды обитания
Greater White-fronted Goose only
Masked Duck only
Нет
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.
Masked Duck
Male emits a soft, dove-like cooing note; female gives a harsh, emphatic quack. The male's gentle, almost melodic cooing is surprising for a stiff-tail; heard in tropical American 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.
Masked Duck
Resident from Mexico and the Caribbean south through Central America to northern South America. Found in lowland freshwater marshes and lagoons.
Охранный статус
Greater White-fronted Goose
Masked 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 …
Masked Duck
Male is rich rufous-chestnut with black mask from forehead to face, boldly spotted black on upperparts; blue bill. Female is streaked buff and brown with two dark facial stripes crossing …
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.
Masked Duck
A small stiff-tailed duck (~360 g) of family Anatidae, breeding males with a black mask and chestnut body. Inhabits densely vegetated freshwater marshes and ponds from southern Texas to South America and the Caribbean. Dives for seeds and aquatic invertebrates. Secretive and rarely observed. Least Concern; tolerates a broad range of wetland habitats.