Scaly-sided Merganser vs African Pygmy-goose
Mergus squamatus comparado con Nettapus auritus
Side-by-Side Comparison
| Atributo | Scaly-sided Merganser | African Pygmy-goose |
|---|---|---|
| Nombre científico | Mergus squamatus | Nettapus auritus |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Endangered | Least Concern |
| Longitud | — | — |
| Envergadura | 51,2 cm (20.2 in) | 29,9 cm (11.8 in) |
| Peso | 1145,8 g (40.42 oz) | 272,5 g (9.61 oz) |
| Dieta | Dives for fish in fast-flowing East Asian rivers. Endangered; highly piscivorous with serrated bill adapted … | Filter-feeds on invertebrates and seeds; dabbles in shallow ponds; diet more plant-based outside spring breeding … |
| Tamaño de la puesta | 4-14 | 6-12 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
Scaly-sided Merganser only
African Pygmy-goose only
Ninguno
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
Scaly-sided Merganser
Male gives a quiet, low grunting call; female produces a guttural, croaking series. Endangered; calls are poorly known; similar to Red-breasted Merganser but quieter in Manchurian forest rivers.
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
Scaly-sided Merganser
Breeds in southern Russia, northern China, and the Russian Far East. Winters in southern China and Korea. Found on fast-flowing forested rivers.
African Pygmy-goose
Breeds across temperate to sub-Arctic Eurasia; winters in Africa, South Asia, and Southeast Asia.
Estado de conservación
Scaly-sided Merganser
African Pygmy-goose
How to Tell Them Apart
Scaly-sided Merganser
Male has iridescent dark green head with long flat crest, white body with distinctive black scaly pattern on flanks, and black back with white patches. Female has brownish-red crested head …
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
Scaly-sided Merganser
El merganso escamoso es un merganso del este de Asia en peligro de extinción que cría en el lejano oriente ruso y el nordeste de China. El macho tiene la cabeza de color verde-negro brillante con un largo moño y los flancos color crema finamente escamados. Habita en ríos y arroyos forestales limpios, y pasa el invierno en ríos del este y centro de China.
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.