Cackling Goose vs African Pygmy-goose
Branta hutchinsii comparado con Nettapus auritus
Side-by-Side Comparison
| Atributo | Cackling Goose | African Pygmy-goose |
|---|---|---|
| Nombre científico | Branta hutchinsii | Nettapus auritus |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 79,3 cm (31.2 in) | 29,9 cm (11.8 in) |
| Peso | 1801,8 g (63.56 oz) | 272,5 g (9.61 oz) |
| Dieta | Grazes aquatic vegetation and sedges in Northern Hemisphere wetlands; migratory; winter diet of eelgrass and … | Filter-feeds on invertebrates and seeds; dabbles in shallow ponds; diet more plant-based outside spring breeding … |
| Tamaño de la puesta | 3-6 | 6-12 |
| Population Trend | — | — |
Habitat Comparison
Cackling Goose
Breeds on low-lying Arctic and subarctic tundra. Winters on grasslands, agricultural fields, and coastal marshes in the central and western United States. Often found in mixed flocks with Canada Geese.
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
Cackling Goose
A high-pitched, yelping 'luk-luk' or 'likl-likl' — higher-pitched and smaller-sounding than Canada Goose. Given rapidly in flock flight. Useful identification feature.
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
Cackling Goose
Breeds in Arctic Canada; winters on the Atlantic coast from New England to Florida, occasionally to the Bahamas and Gulf Coast.
African Pygmy-goose
Breeds across temperate to sub-Arctic Eurasia; winters in Africa, South Asia, and Southeast Asia.
Estado de conservación
Cackling Goose
African Pygmy-goose
How to Tell Them Apart
Cackling Goose
Resembles miniature Canada Goose; black head and neck with white chin strap. Brown-gray back; pale underparts. White undertail. Short neck and stubby bill distinguish from Canada Goose. Sexes similar.
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
Cackling Goose
El barnaclo de Hutchins es una especie de ganso separada recientemente del barnacla canadiense, y es generalmente más pequeño. Cría en islas árticas del norte de Canadá y migra al sur en invierno. Tiene el mismo patrón básico de plumaje que el barnacla canadiense: partes superiores pardas, pecho claro y gorguera negra con mejillas blancas, pero es de menor tamaño.
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.