Velvet Scoter vs African Pygmy-goose
Melanitta fusca в сравнении с Nettapus auritus
Side-by-Side Comparison
| Характеристика | Velvet Scoter | African Pygmy-goose |
|---|---|---|
| Научное название | Melanitta fusca | Nettapus auritus |
| Отряд | Anseriformes | Anseriformes |
| Семейство | Anatidae | Anatidae |
| Охранный статус | Vulnerable | Least Concern |
| Длина | — | — |
| Размах крыльев | 51,8 cm (20.4 in) | 29,9 cm (11.8 in) |
| Масса | 1635,1666666666667 g (57.68 oz) | 272,5 g (9.61 oz) |
| Питание | Dives for mussels, cockles, and crustaceans in coastal and brackish waters. Freshwater insects taken on … | Filter-feeds on invertebrates and seeds; dabbles in shallow ponds; diet more plant-based outside spring breeding … |
| Размер кладки | 7-9 | 6-12 |
| Population Trend | — | — |
Habitat Comparison
Общие среды обитания
Velvet Scoter only
African Pygmy-goose only
Нет
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
Velvet Scoter
Male emits a low, melodious whistled note; female produces a guttural, rasping call. The male's soft whistle contrasts with the female's harsh, buzzy alarm call on European coasts.
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
Velvet Scoter
Breeds in boreal forests of northern Europe and western Siberia. Winters on coasts of northwestern Europe, the Black Sea, and Caspian Sea.
African Pygmy-goose
Breeds across temperate to sub-Arctic Eurasia; winters in Africa, South Asia, and Southeast Asia.
Охранный статус
Velvet Scoter
African Pygmy-goose
How to Tell Them Apart
Velvet Scoter
Male is jet black overall with a small white teardrop below eye and white speculum visible in flight; yellow-sided bill with black knob at base. Female is dark brown with …
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
Velvet Scoter
A large sea duck (~1.6 kg) of the family Anatidae, males black with a white wing patch and yellow-sided bill. Breeds on lakes and rivers of northern Eurasia; winters on coastal waters of Europe. Forages by diving for mollusks and crustaceans. Vulnerable due to significant population declines attributed to hunting pressure and habitat degradation.
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.