Ashy-headed Goose vs Mallard
Chloephaga poliocephala comparado com Anas platyrhynchos
Side-by-Side Comparison
| Atributo | Ashy-headed Goose | Mallard |
|---|---|---|
| Nome científico | Chloephaga poliocephala | Anas platyrhynchos |
| Ordem | Anseriformes | Anseriformes |
| Família | Anatidae | Anatidae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | — | 58,0 cm (22.8 in) |
| Envergadura | 69,1 cm (27.2 in) | 90,0 cm (35.4 in) |
| Peso | 1779,25 g (62.76 oz) | 1100,0 g (38.80 oz) |
| Dieta | Eats grasses, seeds, and aquatic invertebrates; grazes upland pastures and dabbles in wetlands; diet varies … | Omnivorous — aquatic plants, seeds, insects, crustaceans, and mollusks. Feeds by dabbling, upending, and grazing … |
| Tamanho da postura | 4-6 | 4-18 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Habitats partilhados
Ashy-headed Goose only
Mallard only
Nenhum
Ashy-headed Goose
Temperate forests, forest clearings, and lake margins in southern Chile and Patagonian Argentina. Partially migratory; breeds in beech forest zones and winters on open grasslands farther north.
Mallard
Nearly any wetland habitat including lakes, rivers, ponds, marshes, estuaries, and urban park ponds.
Song & Call Comparison
Ashy-headed Goose
A whistled 'seeeeu' from males and a lower cackling from females. Ashy-headed Goose calls carry across Andean foothills and Patagonian grassland habitats.
Mallard
Female gives the classic 'quack-quack-quack', descending in pitch. Male utters soft nasal 'raeb-raeb'. Both give a high 'gag-gag-gag' when alarmed or taking flight.
Geographic Range & Migration
Ashy-headed Goose
Inhabits wetlands and flooded grasslands across South and Southeast Asia, from India to Indonesia. Largely resident year-round.
Mallard
Native across the Northern Hemisphere in North America, Europe, and Asia. Introduced to Australia and New Zealand.
Estado de conservação
Ashy-headed Goose
Mallard
How to Tell Them Apart
Ashy-headed Goose
Gray head and neck contrast with chestnut breast and rufous-barred flanks. Back brown; belly white. White wing patch in flight with iridescent green speculum. Yellow-orange legs. Sexes similar but females …
Mallard
Breeding males have an iridescent green head, white neck ring, chestnut breast, and grey body. Females are mottled brown. Both sexes show a blue speculum bordered by white.
Broad, flat bill — yellow-green in males, orange-brown in females
About These Birds
Ashy-headed Goose
O ganso-de-cabeça-cinza é um ganso médio andino e patagónico do sul da América do Sul. Tem uma cabeça cinzento-pálida característica que contrasta com o corpo castanho-ruivo e as barras pretas e brancas nos flancos. Habita prados e zonas húmidas andinas e patagónicas, migrando para elevações inferiores no inverno. É frequentemente visto em pares ou pequenos grupos. Como outros gansos-da-patagónia, os pares mantêm ligações de longa duração.
Mallard
The mallard is the ancestor of most domestic duck breeds and the most abundant and widespread dabbling duck in the world. Males perform elaborate courtship displays including head-bobbing and whistle-grunt calls. Mallards are highly adaptable, thriving in both wilderness and urban environments.