Höckerschwan vs Southern Pochard
Cygnus olor verglichen mit Netta erythrophthalma
Side-by-Side Comparison
| Merkmal | Höckerschwan | Southern Pochard |
|---|---|---|
| Wissenschaftlicher Name | Cygnus olor | Netta erythrophthalma |
| 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) | 41,6 cm (16.4 in) |
| Gewicht | 11000,0 g (388.01 oz) | 820,8 g (28.95 oz) |
| Ernährung | Submerged aquatic vegetation, algae, and grass. Feeds by upending in shallow water, reaching depths of … | Dives for molluscs, crustaceans, and aquatic invertebrates; eats hard-shelled prey; diet shifts with coastal habitat … |
| Gelegegröße | 5-7 | 5-15 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Höckerschwan
Lakes, slow rivers, estuaries, and coastal lagoons. Often associated with parks and ornamental waters in Europe.
Southern Pochard
Freshwater and brackish lakes, pans, and marshes in sub-Saharan Africa and separately in Colombia, Venezuela, Peru, and Ecuador. Nomadic in Africa; follows seasonal flooding.
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.
Southern Pochard
Male gives a harsh, buzzy churr; female produces a series of resonant quacks. The male's buzzy display call is subdued; the female's loud, emphatic quacking dominates African wetland sounds.
Geographic Range & Migration
Höckerschwan
Native to Europe and western Asia. Introduced to North America, South Africa, Australia, and New Zealand.
Southern Pochard
Breeds across northern North America; winters along both coasts, the Gulf of Mexico, and in the Caribbean Basin.
Erhaltungsstatus
Höckerschwan
Southern 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
Southern Pochard
Males deep brown with iridescent black head and red eye; pale blue-gray bill with dark tip. Females brown with pale face and pale crescent behind eye. White wing stripe in …
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.
Southern Pochard
A medium-sized diving duck. Males have a dark chestnut-brown head and body with a white eye-ring and red eye; females are brown with white facial crescent. Found in sub-Saharan Africa and South America. Nomadic in Africa; follows water availability.