Yellow-billed Pintail vs Mallard
Anas georgica comparado com Anas platyrhynchos
Side-by-Side Comparison
| Atributo | Yellow-billed Pintail | Mallard |
|---|---|---|
| Nome científico | Anas georgica | Anas platyrhynchos |
| Ordem | Anseriformes | Anseriformes |
| Família | Anatidae | Anatidae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | — | 58,0 cm (22.8 in) |
| Envergadura | 41,1 cm (16.2 in) | 90,0 cm (35.4 in) |
| Peso | 626,6666666666666 g (22.11 oz) | 1100,0 g (38.80 oz) |
| Dieta | Eats aquatic invertebrates, molluscs, and small fish; dives in shallow water; diet varies between freshwater … | Omnivorous — aquatic plants, seeds, insects, crustaceans, and mollusks. Feeds by dabbling, upending, and grazing … |
| Tamanho da postura | 3-12 | 4-18 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Habitats partilhados
Yellow-billed Pintail only
Mallard only
Nenhum
Yellow-billed Pintail
Freshwater and brackish lakes, rivers, marshes, and bogs from the Andes to Patagonia in South America, plus the Falkland Islands and South Georgia. Ranges from sea level to high altitudes. Partially migratory.
Mallard
Nearly any wetland habitat including lakes, rivers, ponds, marshes, estuaries, and urban park ponds.
Song & Call Comparison
Yellow-billed Pintail
Female gives a nasal, descending quacking series; male utters a short, whistled note. Calls are softer than the Northern Pintail; heard across South American lakes and pampas marshes.
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
Yellow-billed Pintail
Breeds across the northern Palearctic; winters in Europe, North Africa, the Middle East, and South Asia.
Mallard
Native across the Northern Hemisphere in North America, Europe, and Asia. Introduced to Australia and New Zealand.
Estado de conservação
Yellow-billed Pintail
Mallard
How to Tell Them Apart
Yellow-billed Pintail
Brown plumage with pale buff feather edges creating scalloped pattern. Yellow bill with black ridge and tip. Pointed tail; long neck. Iridescent speculum with buff front border. Sexes similar. Andean …
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
Yellow-billed Pintail
O pato amarelo-castanho é um pato dabbling encontrado na América do Sul e nas ilhas da Geórgia do Sul. Apresenta uma plumagem castanha mosqueada com a cabeça estriada e um espelho alar verde-dourado marcante. É amplamente distribuído em zonas húmidas andinas e patagónicas, desde a Colômbia e Venezuela até à Terra do Fogo. As populações das ilhas da Geórgia do Sul são isoladas e foram propostas como subespécie separada.
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.