Mexican Duck vs Mallard
Anas diazi в сравнении с Anas platyrhynchos
Side-by-Side Comparison
| Характеристика | Mexican Duck | Mallard |
|---|---|---|
| Научное название | Anas diazi | Anas platyrhynchos |
| Отряд | Anseriformes | Anseriformes |
| Семейство | Anatidae | Anatidae |
| Охранный статус | Not Evaluated | Least Concern |
| Длина | — | 58,0 cm (22.8 in) |
| Размах крыльев | — | 90,0 cm (35.4 in) |
| Масса | 1003,75 g (35.41 oz) | 1100,0 g (38.80 oz) |
| Питание | Eats fish, molluscs, and aquatic invertebrates; dives in fresh and salt water; diet shifts between … | Omnivorous — aquatic plants, seeds, insects, crustaceans, and mollusks. Feeds by dabbling, upending, and grazing … |
| Размер кладки | 1-13 | 4-18 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Mexican Duck
Freshwater lakes, marshes, and rivers at 1,000–2,500 m in the highlands of Mexico and the southwestern United States. Uses agricultural ponds and irrigation canals.
Mallard
Nearly any wetland habitat including lakes, rivers, ponds, marshes, estuaries, and urban park ponds.
Song & Call Comparison
Mexican Duck
Female gives a Mallard-like, descending quacking series; male utters a soft, nasal grunt. Vocalizations essentially identical to Mallard; found in Mexican interior wetlands and the Rio Grande.
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
Mexican Duck
Breeds in central and eastern Siberia; winters in East Asia, Southeast Asia, and the East African coast.
Mallard
Native across the Northern Hemisphere in North America, Europe, and Asia. Introduced to Australia and New Zealand.
Охранный статус
Mexican Duck
Mallard
How to Tell Them Apart
Mexican Duck
Similar to Mottled Duck; mottled brown plumage with pale buff head showing dark crown and eye stripe. Iridescent blue-purple speculum with white borders. Yellow-orange bill. Both sexes similar. SW USA …
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
Mexican Duck
A large dabbling duck resembling a female Mallard with an olive-green bill, blue speculum, and orange-yellow legs. Found in highland lakes and marshes of Mexico and the southwestern United States. Often considered a Mallard subspecies; sometimes treated as distinct due to limited hybridization.
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.