African Pygmy-goose vs Blue-winged Teal
Nettapus auritus เปรียบเทียบกับ Spatula discors
Side-by-Side Comparison
| คุณสมบัติ | African Pygmy-goose | Blue-winged Teal |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Nettapus auritus | Spatula discors |
| อันดับ | Anseriformes | Anseriformes |
| วงศ์ตระกูล | Anatidae | Anatidae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | — | — |
| กว้างปีก | 29.9 cm (11.8 in) | 35.7 cm (14.1 in) |
| น้ำหนัก | 272.5 g (9.61 oz) | 400.5 g (14.13 oz) |
| อาหาร | Filter-feeds on invertebrates and seeds; dabbles in shallow ponds; diet more plant-based outside spring breeding … | Dabbles for aquatic invertebrates and seeds; diet shifts between plant-heavy and invertebrate-heavy phases seasonally. |
| จำนวนไข่ | 6-12 | 6-15 |
| Population Trend | — | — |
Habitat Comparison
ถิ่นที่อยู่อาศัยร่วมกัน
African Pygmy-goose only
ไม่มี
Blue-winged Teal only
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.
Blue-winged Teal
Breeds on prairie wetlands, lakes, and marshes across North America. Winters on freshwater and coastal wetlands from the southern United States through Central America to South America.
Song & Call Comparison
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.
Blue-winged Teal
Male gives a high, thin whistle; female produces a rapid, descending quacking laugh. The nasal, laughing female call is immediately recognizable in North American freshwater marshes.
Geographic Range & Migration
African Pygmy-goose
Breeds across temperate to sub-Arctic Eurasia; winters in Africa, South Asia, and Southeast Asia.
Blue-winged Teal
Breeds in tundra of northern Russia and Alaska; winters on the open North Pacific from Alaska to Japan and California.
สถานะการอนุรักษ์
African Pygmy-goose
Blue-winged Teal
How to Tell Them Apart
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.
Blue-winged Teal
Males have slate-blue head with bold white crescent before eye. Body brown with dark spots. Pale blue forewing patch and green speculum conspicuous. Females mottled brown with pale loral spot. …
About These Birds
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.
Blue-winged Teal
A small brown teal. Males have a slate-grey head with a large white crescent before the eye and a striking pale blue-grey wing patch visible in flight. One of North America's most abundant ducks. Long-distance migrant; winters from the southern United States to South America.