Baer's Pochard vs Stockente
Aythya baeri verglichen mit Anas platyrhynchos
Side-by-Side Comparison
| Merkmal | Baer's Pochard | Stockente |
|---|---|---|
| Wissenschaftlicher Name | Aythya baeri | Anas platyrhynchos |
| Ordnung | Anseriformes | Anseriformes |
| Familie | Anatidae | Anatidae |
| Erhaltungsstatus | Critically Endangered | Least Concern |
| Länge | — | 58,0 cm (22.8 in) |
| Flügelspannweite | 40,4 cm (15.9 in) | 90,0 cm (35.4 in) |
| Gewicht | 707,25 g (24.95 oz) | 1100,0 g (38.80 oz) |
| Ernährung | Dives for molluscs and aquatic invertebrates; diet dominated by hard-shelled benthic prey in coastal shallow-water … | Omnivorous — aquatic plants, seeds, insects, crustaceans, and mollusks. Feeds by dabbling, upending, and grazing … |
| Gelegegröße | 6-13 | 4-18 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Baer's Pochard
Breeds on lakes and rivers in boreal forests of eastern Siberia and northeastern China. Winters on freshwater lakes and wetlands in eastern and southeastern Asia. Critically Endangered; tiny remaining population.
Stockente
Nearly any wetland habitat including lakes, rivers, ponds, marshes, estuaries, and urban park ponds.
Song & Call Comparison
Baer's Pochard
Male gives a low, grating wheeze; female produces a harsh quacking series. Calls resemble Tufted Duck but slightly softer; among the rarest duck calls in East Asia due to its …
Stockente
Female gives the classic 'quack-quack-quack', descending in pitch. Male utters soft nasal 'raeb-raeb'. Both give a high 'gag-gag-gag' when alarmed or taking flight.
Geographic Range & Migration
Baer's Pochard
Breeds in Arctic Canada and Alaska; winters at sea off both US coasts and in the Great Lakes during migration.
Stockente
Native across the Northern Hemisphere in North America, Europe, and Asia. Introduced to Australia and New Zealand.
Erhaltungsstatus
Baer's Pochard
Stockente
How to Tell Them Apart
Baer's Pochard
Males have dark glossy greenish-black head; chestnut breast; white flanks and undertail. White eye. Females brown with chestnut breast and pale face patch. White wing stripe in flight. Critically endangered …
Stockente
Breeding males have an iridescent green head, white neck ring, chestnut breast, and grey body. Females are mottled brown. Both sexes show a blue speculum bordered by white.
Broad, flat bill — yellow-green in males, orange-brown in females
About These Birds
Baer's Pochard
A medium-sized diving duck. Males have a glossy green-black head, chestnut breast, and white flanks; females are brown. Critically Endangered; one of the fastest declining ducks in Asia. Breeds in eastern Siberia; winters in eastern China and Southeast Asia. Threatened by hunting.
Stockente
Die Stockente ist die Stammform der meisten Hausentenrassen und die häufigste und am weitesten verbreitete Schwimmente der Welt. Erpel zeigen aufwendige Balzrituale, darunter Kopfnicken und pfeifend-grunzende Rufe. Stockenten sind äußerst anpassungsfähig und gedeihen sowohl in der Wildnis als auch in städtischen Lebensräumen.