Höckerschwan vs African Pygmy-goose
Cygnus olor verglichen mit Nettapus auritus
Side-by-Side Comparison
| Merkmal | Höckerschwan | African Pygmy-goose |
|---|---|---|
| Wissenschaftlicher Name | Cygnus olor | Nettapus auritus |
| 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) | 29,9 cm (11.8 in) |
| Gewicht | 11000,0 g (388.01 oz) | 272,5 g (9.61 oz) |
| Ernährung | Submerged aquatic vegetation, algae, and grass. Feeds by upending in shallow water, reaching depths of … | Filter-feeds on invertebrates and seeds; dabbles in shallow ponds; diet more plant-based outside spring breeding … |
| Gelegegröße | 5-7 | 6-12 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Höckerschwan
Lakes, slow rivers, estuaries, and coastal lagoons. Often associated with parks and ornamental waters in Europe.
African Pygmy-goose
Freshwater lakes, ponds, and rivers with floating water lilies and other aquatic vegetation across sub-Saharan Africa from Senegal to Tanzania. Nests in tree cavities near water. Highly dependent on water lily vegetation.
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.
African Pygmy-goose
Male produces a soft, wheezy whistle; female gives a quiet, duck-like quack. Pairs exchange rapid twittering notes during courtship on lily-covered African pools.
Geographic Range & Migration
Höckerschwan
Native to Europe and western Asia. Introduced to North America, South Africa, Australia, and New Zealand.
African Pygmy-goose
Breeds across temperate to sub-Arctic Eurasia; winters in Africa, South Asia, and Southeast Asia.
Erhaltungsstatus
Höckerschwan
African Pygmy-goose
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
African Pygmy-goose
Tiny. Males have glossy dark green head with orange facial patch and ear spot; chestnut-orange flanks; white underparts; black and green back. Females duller with dark eye-stripe. Small yellow-green bill.
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.
African Pygmy-goose
A tiny jewel-like duck—one of Africa's smallest waterfowl. Males have iridescent green-and-white plumage, an orange bill, and a dark green cap; females are mottled brown. Found on lily-covered lakes in sub-Saharan Africa. Perches on water lily pads and feeds on their seeds and flowers.