Mexican Duck vs African Pygmy-goose
Anas diazi comparado con Nettapus auritus
Side-by-Side Comparison
| Atributo | Mexican Duck | African Pygmy-goose |
|---|---|---|
| Nombre científico | Anas diazi | Nettapus auritus |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Not Evaluated | Least Concern |
| Longitud | — | — |
| Envergadura | — | 29,9 cm (11.8 in) |
| Peso | 1003,75 g (35.41 oz) | 272,5 g (9.61 oz) |
| Dieta | Eats fish, molluscs, and aquatic invertebrates; dives in fresh and salt water; diet shifts between … | Filter-feeds on invertebrates and seeds; dabbles in shallow ponds; diet more plant-based outside spring breeding … |
| Tamaño de la puesta | 1-13 | 6-12 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
Mexican Duck only
African Pygmy-goose only
Ninguno
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 Pygmy-goose
Freshwater lakes, ponds, and rivers with floating water lilies and other aquatic vegetation across sub-Saharan Africa from Senegal to Tanzania. Nests in tree cavities near water. Highly dependent on water lily vegetation.
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 Pygmy-goose
Male produces a soft, wheezy whistle; female gives a quiet, duck-like quack. Pairs exchange rapid twittering notes during courtship on lily-covered African pools.
Geographic Range & Migration
Mexican Duck
Breeds in central and eastern Siberia; winters in East Asia, Southeast Asia, and the East African coast.
African Pygmy-goose
Breeds across temperate to sub-Arctic Eurasia; winters in Africa, South Asia, and Southeast Asia.
Estado de conservación
Mexican Duck
African Pygmy-goose
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 Pygmy-goose
Tiny. Males have glossy dark green head with orange facial patch and ear spot; chestnut-orange flanks; white underparts; black and green back. Females duller with dark eye-stripe. Small yellow-green bill.
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 Pygmy-goose
El pigmeo africano o pato enano africano es el pato más pequeño de África y uno de los patos más pequeños del mundo. Tiene plumaje de color verde oscuro y blanco con el cuello de color castaño rojizo. Habita en lagunas tranquilas, estanques y pantanos con abundante vegetación flotante, especialmente lirios de agua, en África subsahariana.