Andean Goose vs African Pygmy-goose
Chloephaga melanoptera เปรียบเทียบกับ Nettapus auritus
Side-by-Side Comparison
| คุณสมบัติ | Andean Goose | African Pygmy-goose |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Chloephaga melanoptera | Nettapus auritus |
| อันดับ | Anseriformes | Anseriformes |
| วงศ์ตระกูล | Anatidae | Anatidae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | — | — |
| กว้างปีก | 86.3 cm (34.0 in) | 29.9 cm (11.8 in) |
| น้ำหนัก | 2617.5 g (92.33 oz) | 272.5 g (9.61 oz) |
| อาหาร | Eats grasses, seeds, molluscs, and aquatic invertebrates; wades in shallow water; diet includes invertebrates year-round. | Filter-feeds on invertebrates and seeds; dabbles in shallow ponds; diet more plant-based outside spring breeding … |
| จำนวนไข่ | 5-10 | 6-12 |
| Population Trend | — | — |
Habitat Comparison
Andean Goose
High-altitude puna grassland, bofedales (cushion bogs), and lakeshores at 3,500–5,500 m in the Andes from Peru through Bolivia and Chile to northwestern Argentina. Grazes beside glacial and alpine lakes.
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
Andean Goose
A loud, cackling 'kek-kek-kek' from high-altitude Andean puna. Pairs are territorial and vocal. Calls carry well across open altiplano above 4,000 m elevation.
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
Andean Goose
Formerly widespread on the Mascarene Island of Réunion. Extinct in the 17th century; extirpated by hunting and introduced predators.
African Pygmy-goose
Breeds across temperate to sub-Arctic Eurasia; winters in Africa, South Asia, and Southeast Asia.
สถานะการอนุรักษ์
Andean Goose
African Pygmy-goose
How to Tell Them Apart
Andean Goose
Entirely white plumage except black-tipped primaries and black tail. Bill and legs coral-pink. Larger than most Chloephaga. Sexes similar. Inhabits high Andean lakes and grasslands above 3,000 m.
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
Andean Goose
A large white-and-black sheldgoose with a distinctive black-tipped pink-and-black bill, bright pink legs, and black wings. Endemic to high Andean puna. One of the highest-living birds in the Americas; found beside glacial lakes and streams. Monogamous; highly territorial during breeding.
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.