Southern Pintail vs Greater White-fronted Goose
Anas eatoni comparado com Anser albifrons
Side-by-Side Comparison
| Atributo | Southern Pintail | Greater White-fronted Goose |
|---|---|---|
| Nome científico | Anas eatoni | Anser albifrons |
| Ordem | Anseriformes | Anseriformes |
| Família | Anatidae | Anatidae |
| Estado de conservação | Vulnerable | Least Concern |
| Comprimento | — | — |
| Envergadura | 40,6 cm (16.0 in) | 81,6 cm (32.1 in) |
| Peso | 497,0 g (17.53 oz) | 2471,0 g (87.16 oz) |
| Dieta | Dives for molluscs, crustaceans, and aquatic invertebrates; eats hard-shelled prey; diet shifts between freshwater and … | Dabbles for aquatic invertebrates, seeds, and plant material; diet shifts heavily toward invertebrates in breeding … |
| Tamanho da postura | 2-6 | 3-9 |
| Population Trend | — | — |
Habitat Comparison
Habitats partilhados
Southern Pintail only
Nenhum
Greater White-fronted Goose only
Southern Pintail
Restricted to the sub-Antarctic Kerguelen and Crozet archipelagos. Inhabits freshwater streams, ponds, and coastal wetlands. Largely terrestrial for a duck; forages on land among tussock grasses.
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
Southern Pintail
Female produces a quiet, nasal quacking; male gives a soft whistle. Subdued vocalizations suit this sub-Antarctic island duck; calls are seldom heard and rarely documented.
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.
Geographic Range & Migration
Southern Pintail
Breeds in Iceland and high-Arctic Norway; winters on the coasts of northwestern Europe and the British Isles.
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.
Estado de conservação
Southern Pintail
Greater White-fronted Goose
How to Tell Them Apart
Southern Pintail
Brown, mottled plumage; head brown with pale cheeks. Pointed tail; males slightly longer-tailed. Grayish bill. Speculum bronze-green. Sexes similar with modest dimorphism. Subantarctic island endemic; two subspecies.
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 …
About These Birds
Southern Pintail
O pato-dos-kerguélen é um pato dabbling pequeno restrito às ilhas subantárticas de Kerguélen e Crozet no Oceano Índico sul. Assemelha-se a uma versão menor do pato-real mas com plumagem mais escura. Existe como espécie isolada nestas ilhas remotas. Enfrenta ameaças de ratos e gatos introduzidos que predam os ninhos e filhotes. As populações são pequenas e limitadas a estas ilhas remotas, tornando a espécie vulnerável a qualquer catástrofe local.
Greater White-fronted Goose
O ganso-de-testa-branca é um ganso cinzento médio com uma característica faixa branca na frente da cabeça e barras pretas irregulares no ventre. Tem distribuição circumolar na tundra ártica onde cria, hibernando mais ao sul. As duas subespécies principais diferem no tamanho do bico e hibernam em diferentes regiões. Alimenta-se de plantas de tundra durante a criação e de pasto e culturas nas suas áreas de hibernada. É uma espécie cinegética amplamente caçada.