Brent Goose vs Red Shoveler
Branta bernicla 对比 Spatula platalea
Side-by-Side Comparison
| 属性 | Brent Goose | Red Shoveler |
|---|---|---|
| 学名 | Branta bernicla | Spatula platalea |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 63.9 cm (25.2 in) | 42.0 cm (16.5 in) |
| 体重 | 1335.0 g (47.09 oz) | 511.6 g (18.05 oz) |
| 食性 | Primarily herbivorous; grazes aquatic plants, grasses, and sedges; swans upend in shallow water for submerged … | Feeds on seeds and aquatic invertebrates in shallow water; diet shifts between plant matter and … |
| 产卵数 | 1-10 | 5-10 |
| Population Trend | — | — |
Habitat Comparison
Brent Goose
Breeds on high-Arctic tundra; winters on estuaries, coastal mudflats, saltmarshes, and sea-grass beds along Atlantic and Pacific coastlines. One of the most strictly coastal wintering geese.
Red Shoveler
Freshwater and brackish lakes, marshes, and seasonal lagoons in southern South America from Peru and Bolivia south through Chile and Argentina to Tierra del Fuego. Partially migratory; moves northward in winter.
Song & Call Comparison
Brent Goose
A low, guttural 'rronk' or 'ronk-ronk' from flocks. Soft nasal calls in feeding groups. A subtle, understated call for a goose — less loud than most Anser geese.
Red Shoveler
Male emits a low, grunting kuk note; female gives a quiet, rhythmic quacking series. Pairs are generally silent; soft contact calls heard at dusk on South American grassland ponds.
Geographic Range & Migration
Brent Goose
Breeds across boreal and subarctic Canada and Alaska; winters in the southern United States, Mexico, and Central America.
Red Shoveler
Breeds in Iceland, Greenland, and Arctic Canada; winters along the coasts of northwestern Europe and the British Isles.
保护状况
Brent Goose
Red Shoveler
How to Tell Them Apart
Brent Goose
Small; mostly black head, neck, and breast. Small white neck-patch on adults. Back dark brownish-gray; belly pale gray to white depending on subspecies. White undertail coverts. Sexes similar.
Red Shoveler
Males reddish-cinnamon with dense dark spotting; pale blue-gray head with white eye and dark streaks. Pale blue forewing and green speculum in flight. Broad spatulate bill. Females brown, mottled. South …
About These Birds
Brent Goose
黑雁是小型海雁，繁殖于北极苔原，越冬于温带沿海地区。全身黑色，颈部有白色斑纹，腹部浅色或深色（因亚种而异）。以海草（大叶藻）和潮间带植物为食，高度依赖沿海湿地。在欧洲和北美分布有多个亚种，其中部分亚种数量因大叶藻减少而受到威胁。
Red Shoveler
A medium-sized shoveler with a distinctive spatula-shaped bill. Males are pale orange-brown with dark spots, grey-blue wing patch, and dark green speculum; females are mottled brown. Found across southern South America. Swims with bill tip in water, filtering zooplankton and seeds.