Bufflehead vs African Pygmy-goose
Bucephala albeola 비교 대상 Nettapus auritus
Side-by-Side Comparison
| 속성 | Bufflehead | African Pygmy-goose |
|---|---|---|
| 학명 | Bucephala albeola | Nettapus auritus |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 32.2 cm (12.7 in) | 29.9 cm (11.8 in) |
| 체중 | 400.5 g (14.13 oz) | 272.5 g (9.61 oz) |
| 식성 | Dives for aquatic insects, crustaceans, and small molluscs in freshwater and coastal habitats. One of … | Filter-feeds on invertebrates and seeds; dabbles in shallow ponds; diet more plant-based outside spring breeding … |
| 산란 수 | 5-14 | 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
Bufflehead
Male produces a soft, squeaky whistle; female gives a harsh, nasal quack. The male's thin, reedy whistle is barely audible; pairs exchange quiet contact calls at boreal forest ponds.
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
Bufflehead
Breeds in boreal forest of western and central North America. Winters along both coasts and interior lakes from southern Canada south to Mexico.
African Pygmy-goose
Breeds across temperate to sub-Arctic Eurasia; winters in Africa, South Asia, and Southeast Asia.
보전 상태
Bufflehead
African Pygmy-goose
How to Tell Them Apart
Bufflehead
Male has iridescent green-purple head with a large triangular white patch from behind eye over crown; body clean white except for black back. Female is dark sooty-brown with a single …
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
Bufflehead
북미에서 가장 작은 잠수오리(약 400g)로, 수컷은 큰 흰 머리 반점이 있는 자줏빛 녹색 홍채를 가집니다. 딱따구리 구멍에 둥지를 틀어 연못과 호수 근처 삼림 지역에서 번식하며, 해안 만과 내륙 수역에서 월동합니다. 수생 무척추동물과 소형 물고기를 먹습니다. 안정적 개체수의 관심대상 종입니다.
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.