Mexican Duck vs African Black Duck
Anas diazi comparado con Anas sparsa
Side-by-Side Comparison
| Atributo | Mexican Duck | African Black Duck |
|---|---|---|
| Nombre científico | Anas diazi | Anas sparsa |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Not Evaluated | Least Concern |
| Longitud | — | — |
| Envergadura | — | 49,5 cm (19.5 in) |
| Peso | 1003,75 g (35.41 oz) | 996,8333333333334 g (35.16 oz) |
| Dieta | Eats fish, molluscs, and aquatic invertebrates; dives in fresh and salt water; diet shifts between … | Eats molluscs, crustaceans, and aquatic invertebrates; dives in coastal and freshwater habitats; diet heavier in … |
| Tamaño de la puesta | 1-13 | 4-9 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
Mexican Duck only
African Black 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.
African Black Duck
Fast-flowing rocky rivers and streams, mountain gorges, and waterfalls from sea level to 4,000 m across sub-Saharan Africa from Ethiopia and Kenya south to the Cape. Requires clear turbulent water with boulders.
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.
African Black Duck
Produces a harsh, resonant quacking call; alarm is a loud, emphatic quack repeated rapidly. Both sexes call with strong quacking; pairs duet with synchronized calls along African rivers.
Geographic Range & Migration
Mexican Duck
Breeds in central and eastern Siberia; winters in East Asia, Southeast Asia, and the East African coast.
African Black Duck
Resident across South and Southeast Asia, from India to southern China and the Philippines. Non-migratory in most of its range.
Estado de conservación
Mexican Duck
African Black 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 …
African Black Duck
Dark blackish-brown plumage with bold white spots on back and scapulars. Iridescent blue-green speculum with white borders. Head dark with pale spots. Bill and legs dark gray. Sexes similar. Fast-flowing …
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.
African Black Duck
El pato africano moteado es un pato de tamaño mediano de color marrón oscuro con motas blancas en el pecho y los flancos. Habita en ríos de rápido caudal, cascadas y arroyos de montaña en África central y meridional, siendo inusual entre los patos por su preferencia por aguas corrientes y turbulentas. También se encuentra en altitudes elevadas en las zonas montañosas de África oriental.