Barrow's Goldeneye vs Höckerschwan
Bucephala islandica verglichen mit Cygnus olor
Side-by-Side Comparison
| Merkmal | Barrow's Goldeneye | Höckerschwan |
|---|---|---|
| Wissenschaftlicher Name | Bucephala islandica | Cygnus olor |
| Ordnung | Anseriformes | Anseriformes |
| Familie | Anatidae | Anatidae |
| Erhaltungsstatus | Least Concern | Least Concern |
| Länge | — | 152,0 cm (59.8 in) |
| Flügelspannweite | 44,3 cm (17.4 in) | 235,0 cm (92.5 in) |
| Gewicht | 838,0 g (29.56 oz) | 11000,0 g (388.01 oz) |
| Ernährung | Dives for crustaceans, aquatic insects, and molluscs in mountain lakes and coastal bays. Diet similar … | Submerged aquatic vegetation, algae, and grass. Feeds by upending in shallow water, reaching depths of … |
| Gelegegröße | 6-14 | 5-7 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Höckerschwan
Lakes, slow rivers, estuaries, and coastal lagoons. Often associated with parks and ornamental waters in Europe.
Song & Call Comparison
Barrow's Goldeneye
Male produces a whistled, nasal kaow-kaow call; female gives a harsh quacking series. The male's wheezy, double call differs from Common Goldeneye; heard on western North American lakes.
Höckerschwan
Despite its name, not truly mute: gives hissing snorts and low grunting when threatened. Wings produce a loud rhythmic whistling throbbing sound in flight.
Geographic Range & Migration
Barrow's Goldeneye
Breeds in Iceland, western Canada, and locally the western United States. Winters on coasts and lakes of the Pacific Northwest and eastern Canada.
Höckerschwan
Native to Europe and western Asia. Introduced to North America, South Africa, Australia, and New Zealand.
Erhaltungsstatus
Barrow's Goldeneye
Höckerschwan
How to Tell Them Apart
Barrow's Goldeneye
Male has iridescent purple-black head with crescent-shaped white facial patch; white body with black scapulars bearing bold white spots. Female grey with brown head, white collar; head rounder than Common …
Höckerschwan
All-white plumage in adults. Cygnets are grey-brown, gradually whitening over the first year. Graceful S-curved neck posture is distinctive.
Orange bill with a prominent black knob at the base, larger in males
About These Birds
Barrow's Goldeneye
A medium-sized cavity-nesting duck (~840 g) in family Anatidae, males with purple-glossed heads and a crescent-shaped white face patch. Breeds near mountain lakes in western North America and Iceland; winters on coastal bays. Dives for invertebrates and small fish. Least Concern; dependent on large tree cavities for nesting.
Höckerschwan
Der Höckerschwan gehört zu den schwersten flugfähigen Vögeln; Männchen können bis zu 14 kg wiegen. Trotz seines englischen Namens („Mute Swan“, stummer Schwan) ist er keineswegs stumm und gibt zischende, grunzende und schnaubende Laute von sich. Höckerschwäne gehen lebenslange Paarbindungen ein, und ihre aggressive Verteidigung des Brutreviers ist bekannt.