Common Pochard vs African Pygmy-goose
Aythya ferina 비교 대상 Nettapus auritus
Side-by-Side Comparison
| 속성 | Common Pochard | African Pygmy-goose |
|---|---|---|
| 학명 | Aythya ferina | Nettapus auritus |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Vulnerable | Least Concern |
| 체장 | — | — |
| 날개 폭 | 41.7 cm (16.4 in) | 29.9 cm (11.8 in) |
| 체중 | 845.5 g (29.82 oz) | 272.5 g (9.61 oz) |
| 식성 | Eats molluscs, crustaceans, and aquatic invertebrates; dives in shallow water; diet dominated by hard-shelled benthic … | Filter-feeds on invertebrates and seeds; dabbles in shallow ponds; diet more plant-based outside spring breeding … |
| 산란 수 | 3-22 | 6-12 |
| Population Trend | — | — |
Habitat Comparison
Common Pochard
Breeds on freshwater lakes and marshes with emergent vegetation across Eurasia from Iceland and western Europe east to Siberia. Winters on large open lakes, reservoirs, and estuaries.
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
Common Pochard
Male emits a soft, wheezing purr; female gives a harsh, grating quacking series. The male's gentle, sibilant purring contrasts with the female's loud, grating call on European and Asian lakes.
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
Common Pochard
Breeds across northern and central North America; winters in Mexico, Central America, and along both US coasts.
African Pygmy-goose
Breeds across temperate to sub-Arctic Eurasia; winters in Africa, South Asia, and Southeast Asia.
보전 상태
Common Pochard
African Pygmy-goose
How to Tell Them Apart
Common Pochard
Males have chestnut-red head and neck; black breast; pale gray body; black undertail. Red eye. Blue-gray bill with dark base and tip. Females brown with pale face and eye-ring. Gray …
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
Common Pochard
중간 크기의 잠수오리입니다. 수컷은 풍부한 밤색 빨간 머리, 검은 가슴, 연한 회색 몸통을 가지며 암컷은 창백한 얼굴의 갈색입니다. 유라시아 전역에 넓게 분포합니다. 개체수가 급격히 감소 중이며 유럽 적색목록에서 취약(VU) 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.