Lesser White-fronted Goose vs African Pygmy-goose
Anser erythropus 对比 Nettapus auritus
Side-by-Side Comparison
| 属性 | Lesser White-fronted Goose | African Pygmy-goose |
|---|---|---|
| 学名 | Anser erythropus | Nettapus auritus |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保护状况 | Vulnerable | Least Concern |
| 体长 | — | — |
| 翼展 | 73.8 cm (29.1 in) | 29.9 cm (11.8 in) |
| 体重 | 1912.5 g (67.46 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 | 2-8 | 6-12 |
| Population Trend | — | — |
Habitat Comparison
Lesser White-fronted Goose
Breeds on low-arctic and subarctic willow scrub and tundra across northern Eurasia. Winters on agricultural steppes and wetlands in Azerbaijan, Iran, Greece, and eastern Asia. Mixes with White-fronted Goose flocks.
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
Lesser White-fronted Goose
A high-pitched, rapid 'yelp' — noticeably faster and higher than Greater White-fronted. VU status; its smaller size is reflected in higher-frequency calls.
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
Lesser White-fronted Goose
African Pygmy-goose
Breeds across temperate to sub-Arctic Eurasia; winters in Africa, South Asia, and Southeast Asia.
保护状况
Lesser White-fronted Goose
African Pygmy-goose
How to Tell Them Apart
Lesser White-fronted Goose
Similar to but smaller than Greater White-fronted Goose; more extensive white forehead reaching above eyes. Distinctive yellow eye-ring. Dark brown-gray body with black belly bars. Pink bill; orange legs.
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
Lesser White-fronted Goose
小白额雁是灰雁属中体型最小的种类，繁殖于西伯利亚北极冻原，越冬于东南欧、伊朗及中国东部。与白额雁相似，但体型更小，额白斑更大，眼圈黄色醒目。由于越冬地农业变化和猎捕压力，数量已大幅减少，被列为易危物种。
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.