Long-tailed Duck vs African Pygmy-goose
Clangula hyemalis ile kıyaslandığında Nettapus auritus
Side-by-Side Comparison
| Özellik | Long-tailed Duck | African Pygmy-goose |
|---|---|---|
| Bilimsel Ad | Clangula hyemalis | Nettapus auritus |
| Takım | Anseriformes | Anseriformes |
| Familya | Anatidae | Anatidae |
| Koruma Durumu | Vulnerable | Least Concern |
| Uzunluk | — | — |
| Kanat Açıklığı | 43,1 cm (17.0 in) | 29,9 cm (11.8 in) |
| Ağırlık | 782,0 g (27.58 oz) | 272,5 g (9.61 oz) |
| Beslenme | Dives deeply for crustaceans, molluscs, and small fish in Arctic and subarctic seas. Freshwater invertebrates … | Filter-feeds on invertebrates and seeds; dabbles in shallow ponds; diet more plant-based outside spring breeding … |
| Kuluçka Büyüklüğü | 2-11 | 6-12 |
| Population Trend | — | — |
Habitat Comparison
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
Long-tailed Duck
Male sings a musical, yodeling ow-owlet-aaaalett sequence; female gives a low, grunting quack. The male's loud, harmonious yodeling is arguably the most musical call among all waterfowl species.
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
Long-tailed Duck
Circumpolar High Arctic breeder. Winters at sea on coasts of northwestern Europe, northeastern North America, and the Bering Sea region.
African Pygmy-goose
Breeds across temperate to sub-Arctic Eurasia; winters in Africa, South Asia, and Southeast Asia.
Koruma Durumu
Long-tailed Duck
African Pygmy-goose
How to Tell Them Apart
Long-tailed Duck
Male in winter is mostly white with dark brown chest band, scapulars, and cheek patch; elongated central tail feathers extend well beyond body. Female is brownish with white face, dark …
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
Long-tailed Duck
A medium-sized Arctic sea duck (~780 g) in family Anatidae, males having elongated central tail feathers. Breeds across circumpolar tundra; winters in large flocks on coastal and open-ocean waters. Dives to impressive depths for crustaceans, fish, and mollusks. Vulnerable; steep population declines linked to bycatch in fishing nets and climate change.
African Pygmy-goose
A tiny jewel-like duck—one of Africa's smallest waterfowl. Males have iridescent green-and-white plumage, an orange bill, and a dark green cap; females are mottled brown. Found on lily-covered lakes in sub-Saharan Africa. Perches on water lily pads and feeds on their seeds and flowers.