Goosander vs African Pygmy-goose
Mergus merganser 对比 Nettapus auritus
Side-by-Side Comparison
| 属性 | Goosander | African Pygmy-goose |
|---|---|---|
| 学名 | Mergus merganser | Nettapus auritus |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 54.2 cm (21.3 in) | 29.9 cm (11.8 in) |
| 体重 | 1488.0 g (52.49 oz) | 272.5 g (9.61 oz) |
| 食性 | Dives for fish, especially salmon and trout, in rivers and lakes. Also takes frogs, crustaceans, … | Filter-feeds on invertebrates and seeds; dabbles in shallow ponds; diet more plant-based outside spring breeding … |
| 产卵数 | 4-22 | 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
Goosander
Male gives a harsh, crow-like karrr call; female produces a guttural, grunting series. Both sexes produce loud, nasal calls; the male's harsh croaking is a distinctive winter river sound.
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
Goosander
Breeds across boreal forests of North America, Europe, and Asia. Winters on coasts and large rivers south to the Mediterranean and South Asia.
African Pygmy-goose
Breeds across temperate to sub-Arctic Eurasia; winters in Africa, South Asia, and Southeast Asia.
保护状况
Goosander
African Pygmy-goose
How to Tell Them Apart
Goosander
Male has dark green iridescent head, salmon-pink suffused white body, and black back; red serrated bill. Female has rufous-brown head with neat white chin patch, grey body, and pinkish-buff breast.
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
Goosander
普通秋沙鸭是最大的秋沙鸭，雄鸟头部深绿色有光泽，体羽白色染粉红，嘴和腿橙红色，细长有锯齿；雌鸟头部棕褐色，有冠羽，上身灰色。广泛繁殖于欧亚和北美北部，越冬于温带内陆和沿海水域。以鱼类为主食，是高效的潜水捕鱼者，在树洞中营巢。
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.