Ruddy-headed Goose vs African Pygmy-goose
Chloephaga rubidiceps 对比 Nettapus auritus
Side-by-Side Comparison
| 属性 | Ruddy-headed Goose | African Pygmy-goose |
|---|---|---|
| 学名 | Chloephaga rubidiceps | Nettapus auritus |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 65.1 cm (25.6 in) | 29.9 cm (11.8 in) |
| 体重 | 1756.8333333333333 g (61.97 oz) | 272.5 g (9.61 oz) |
| 食性 | -- | Filter-feeds on invertebrates and seeds; dabbles in shallow ponds; diet more plant-based outside spring breeding … |
| 产卵数 | 3-8 | 6-12 |
| Population Trend | — | — |
Habitat Comparison
Ruddy-headed Goose
Breeds on open tussock grasslands and moorland in Tierra del Fuego and the Falkland Islands. Mainland wintering population on Patagonian grasslands now critically small. Falkland Islands population relatively stable.
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
Ruddy-headed Goose
A high, whistled 'whee' from males and a cackling rattle from females. Calls similar to Ashy-headed Goose. Falkland Islands population; calls in open coastal grassland.
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
Ruddy-headed Goose
African Pygmy-goose
Breeds across temperate to sub-Arctic Eurasia; winters in Africa, South Asia, and Southeast Asia.
保护状况
Ruddy-headed Goose
African Pygmy-goose
How to Tell Them Apart
Ruddy-headed Goose
Distinctive rufous-brown head and neck; body barred rufous and black above; underparts buff-white finely barred. Orange-yellow legs. White wing patches in flight. Compact; sexes similar. Falklands and Patagonia.
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
Ruddy-headed Goose
棕头雁是南美洲南端的小型雁类，繁殖于阿根廷和智利的巴塔哥尼亚，越冬于布宜诺斯艾利斯省。雄鸟头部棕红色，体羽白色带黑色横纹；雌鸟相似。由于猎捕和栖息地改变，被列为易危物种，在部分越冬地数量大幅下降。
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.