Greater White-fronted Goose vs Cotton Pygmy-goose
Anser albifrons comparado com Nettapus coromandelianus
Side-by-Side Comparison
| Atributo | Greater White-fronted Goose | Cotton Pygmy-goose |
|---|---|---|
| Nome científico | Anser albifrons | Nettapus coromandelianus |
| Ordem | Anseriformes | Anseriformes |
| Família | Anatidae | Anatidae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | — | — |
| Envergadura | 81,6 cm (32.1 in) | 31,7 cm (12.5 in) |
| Peso | 2471,0 g (87.16 oz) | 343,5 g (12.12 oz) |
| Dieta | Dabbles for aquatic invertebrates, seeds, and plant material; diet shifts heavily toward invertebrates in breeding … | Feeds on aquatic invertebrates, seeds, and plant material; dabbles in shallow water; invertebrate diet peaks … |
| Tamanho da postura | 3-9 | 6-18 |
| Population Trend | — | — |
Habitat Comparison
Habitats partilhados
Greater White-fronted Goose only
Cotton Pygmy-goose only
Nenhum
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.
Cotton Pygmy-goose
Freshwater lakes, ponds, slow rivers, and rice paddies with aquatic vegetation from India east through Southeast Asia, China, and New Guinea to northern and eastern Australia. Nests in tree holes near water.
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.
Cotton Pygmy-goose
Male emits a rapid, clucking chatter resembling a toy rattle; female responds with soft, muffled quacks. In flight both sexes produce a distinctive whistling wing-beat.
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.
Cotton Pygmy-goose
Breeds in northern Eurasia; winters in the tropics of Africa and Asia. Migratory; routes cross through the Middle East.
Estado de conservação
Greater White-fronted Goose
Cotton Pygmy-goose
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 …
Cotton Pygmy-goose
Males white below and white-faced with dark green crown and collar; black back with iridescent green gloss; white wing bar conspicuous in flight. Females brown-gray with pale supercilium. Tiny; perches …
About These Birds
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.
Cotton Pygmy-goose
O pato-pigmeu-do-algodão é um pequeno pato encontrado no subcontinente indiano, sudeste da Ásia e Austrália. Os machos têm a plumagem mais branca do que a maioria dos patos com barras escuras no peito e dorso esverdeado brilhante. Habita lagos, tanques e zonas húmidas de água doce com vegetação flutuante como lírios de água. Nidifica frequentemente em ocos de árvore. É o menor pato australiano. Pode ser encontrado em zonas húmidas urbanas e campos de arroz inundados.