Höckerschwan vs Rosy-billed Pochard
Cygnus olor verglichen mit Netta peposaca
Side-by-Side Comparison
| Merkmal | Höckerschwan | Rosy-billed Pochard |
|---|---|---|
| Wissenschaftlicher Name | Cygnus olor | Netta peposaca |
| Ordnung | Anseriformes | Anseriformes |
| Familie | Anatidae | Anatidae |
| Erhaltungsstatus | Least Concern | Least Concern |
| Länge | 152,0 cm (59.8 in) | — |
| Flügelspannweite | 235,0 cm (92.5 in) | 46,1 cm (18.1 in) |
| Gewicht | 11000,0 g (388.01 oz) | 1103,4 g (38.92 oz) |
| Ernährung | Submerged aquatic vegetation, algae, and grass. Feeds by upending in shallow water, reaching depths of … | Eats molluscs, crustaceans, and aquatic invertebrates; dives in shallow coastal water; diet dominated by invertebrates. |
| Gelegegröße | 5-7 | 10 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Höckerschwan
Lakes, slow rivers, estuaries, and coastal lagoons. Often associated with parks and ornamental waters in Europe.
Rosy-billed Pochard
Freshwater lakes, marshes, and lagoons in southern South America from central Brazil through Bolivia, Uruguay, and Argentina to Patagonia. Often on large open lakes. Partially migratory; moves northward in winter.
Song & Call Comparison
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.
Rosy-billed Pochard
Male gives a deep, burping boom; female produces a loud, grunting quack. The male's resonant booming call during display is among the most powerful calls of South American wildfowl.
Geographic Range & Migration
Höckerschwan
Native to Europe and western Asia. Introduced to North America, South Africa, Australia, and New Zealand.
Rosy-billed Pochard
Breeds in northern prairies; winters on interior wetlands and coasts from the southern US to Central America.
Erhaltungsstatus
Höckerschwan
Rosy-billed Pochard
How to Tell Them Apart
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
Rosy-billed Pochard
Males dark sooty-black with iridescent purple gloss on head; bright rosy-red bill with pink knob. White flanks visible when at rest. Females brown with pale face and gray bill. Bold …
About These Birds
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.
Rosy-billed Pochard
A large striking pochard. Males are black-and-grey with an unmistakable bulging bright red bill knob; females are brown. Found in freshwater lakes of southern South America. Common in the Pampas and Patagonia. Often dives to the lake bottom for aquatic plants.