Southern Pintail vs Wandering Whistling-duck
Anas eatoni comparado com Dendrocygna arcuata
Side-by-Side Comparison
| Atributo | Southern Pintail | Wandering Whistling-duck |
|---|---|---|
| Nome científico | Anas eatoni | Dendrocygna arcuata |
| Ordem | Anseriformes | Anseriformes |
| Família | Anatidae | Anatidae |
| Estado de conservação | Vulnerable | Least Concern |
| Comprimento | — | — |
| Envergadura | 40,6 cm (16.0 in) | 37,2 cm (14.6 in) |
| Peso | 497,0 g (17.53 oz) | 779,5 g (27.50 oz) |
| Dieta | Dives for molluscs, crustaceans, and aquatic invertebrates; eats hard-shelled prey; diet shifts between freshwater and … | Eats grasses, sedges, and aquatic plants in tundra; winter diet of coastal salt marsh grasses … |
| Tamanho da postura | 2-6 | 6-15 |
| Population Trend | — | — |
Habitat Comparison
Habitats partilhados
Southern Pintail only
Wandering Whistling-duck only
Nenhum
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.
Wandering Whistling-duck
Tropical freshwater marshes, flooded grasslands, swamps, and lake margins from the Philippines and Indonesia through Papua New Guinea to northern and eastern Australia. Nomadic following wet season flooding.
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.
Wandering Whistling-duck
A soft whistle 'whi-whi-whi' in flight. Less vocal than other whistling-ducks; flocks tend to be quieter. Given at dawn and dusk during flight to roosting or feeding areas.
Geographic Range & Migration
Southern Pintail
Breeds in Iceland and high-Arctic Norway; winters on the coasts of northwestern Europe and the British Isles.
Wandering Whistling-duck
Breeds in Arctic and subarctic regions; winters at sea around the Antarctic pack ice, one of the longest migrations known.
Estado de conservação
Southern Pintail
Wandering Whistling-duck
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.
Wandering Whistling-duck
Rich chestnut-brown head and neck; dark brown back. Flanks rufous with pale buff streaks and dark spots. Belly blackish. Long, dark pinkish legs. Upright posture typical of whistling-ducks. Sexes similar.
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.
Wandering Whistling-duck
O parreco-vagabundo é um pato assobiadeiro encontrado da Indonésia e Filipinas à Austrália. Tem a coloração castanho-avermelhada típica dos parrecos com flancos largamente barrados de castanho-escuro e branco. Habita zonas húmidas de água doce, incluindo lagos, pântanos e planícies inundadas tropicais. É gregário e frequentemente mistura-se com outras espécies de parrecos. Os bandos podem ser muito numerosos durante as estações não reprodutoras.