Mexican Duck vs Spotted Whistling-duck
Anas diazi comparado con Dendrocygna guttata
Side-by-Side Comparison
| Atributo | Mexican Duck | Spotted Whistling-duck |
|---|---|---|
| Nombre científico | Anas diazi | Dendrocygna guttata |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Not Evaluated | Least Concern |
| Longitud | — | — |
| Envergadura | — | 41,3 cm (16.3 in) |
| Peso | 1003,75 g (35.41 oz) | 677,5 g (23.90 oz) |
| Dieta | Eats fish, molluscs, and aquatic invertebrates; dives in fresh and salt water; diet shifts between … | Primarily herbivorous; grazes tundra grasses and sedges; winters on coastal marshes and farmland, switching to … |
| Tamaño de la puesta | 1-13 | 10-11 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
Mexican Duck only
Spotted Whistling-duck only
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.
Spotted Whistling-duck
Freshwater wetlands, rice fields, streams, and forest pools in New Guinea, Sulawesi, the Philippines, and Moluccas. Often found near forested rivers and seasonal swamps at low elevations.
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.
Spotted Whistling-duck
A musical, high whistle similar to other whistling-ducks. Call is softer and less far-carrying than White-faced or Black-bellied species. Given in flight and on water.
Geographic Range & Migration
Mexican Duck
Breeds in central and eastern Siberia; winters in East Asia, Southeast Asia, and the East African coast.
Spotted Whistling-duck
Ranges widely across sub-Saharan Africa in open woodland and savanna. Largely sedentary with local seasonal movements to water.
Estado de conservación
Mexican Duck
Spotted Whistling-duck
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 …
Spotted Whistling-duck
Dark brown above; head and neck dark brown. Underparts heavily spotted white on dark brown ground, giving spotted appearance. Flanks with bold white spots. Pink-red bill and legs. Sexes similar.
About These Birds
Mexican Duck
El pato mexicano, también conocido como pato de México, es un pato de tamaño mediano que habita en humedales y ríos de la meseta central de México y el suroeste de Estados Unidos. Muy similar al pato de collar, fue durante mucho tiempo considerado una subespecie del mismo; los machos presentan un plumaje marrón moteado sin la cabeza verde brillante característica del pato de collar.
Spotted Whistling-duck
El pato silbador moteado es un pato silbador de Indonesia, Filipinas y Nueva Guinea, fácilmente reconocible por el plumaje marrón oscuro con manchas blancas en los flancos. Habita en bosques húmedos tropicales con estanques, pantanos y arrozales. Como todos los patos silbadores, tiene un llamado silbante característico y postura erguida. Está clasificado como casi amenazado.