Upland Goose vs Mute Swan
Chloephaga picta مقارنةً بـ Cygnus olor
Side-by-Side Comparison
| السمة | Upland Goose | Mute Swan |
|---|---|---|
| الاسم العلمي | Chloephaga picta | Cygnus olor |
| الرتبة | Anseriformes | Anseriformes |
| الفصيلة | Anatidae | Anatidae |
| حالة الحفاظ | Least Concern | Least Concern |
| الطول | — | 152,0 cm (59.8 in) |
| طول الجناح | 82,4 cm (32.4 in) | 235,0 cm (92.5 in) |
| الوزن | 2916,0 g (102.86 oz) | 11000,0 g (388.01 oz) |
| النظام الغذائي | Grazes grasses and sedges; dabbles for aquatic invertebrates; diet shifts between plant-heavy and invertebrate-heavy phases. | Submerged aquatic vegetation, algae, and grass. Feeds by upending in shallow water, reaching depths of … |
| عدد البيض في الوضع | 5-8 | 5-7 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Upland Goose
Open Patagonian grasslands, steppe, and agricultural pastures in southern Chile and Argentina, including the Falkland Islands. Grazes on short grass. Males aggressively defend territories. Partially migratory.
Mute Swan
Lakes, slow rivers, estuaries, and coastal lagoons. Often associated with parks and ornamental waters in Europe.
Song & Call Comparison
Upland Goose
Male gives a high, whistled 'whew'; female gives a low, rolling cackle 'ga-ga-ga'. Sexual differences in call are pronounced. Falklands and Patagonian populations highly vocal.
Mute Swan
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
Upland Goose
Endemic to New Caledonia and its surrounding islands. Confined to dense rainforest; non-migratory and terrestrial year-round.
Mute Swan
Native to Europe and western Asia. Introduced to North America, South Africa, Australia, and New Zealand.
حالة الحفاظ
Upland Goose
Mute Swan
How to Tell Them Apart
Upland Goose
Pronounced dimorphism. Males white with black-barred flanks and white wings with black primaries. Females rufous-brown with black-barred flanks and white belly. Both sexes yellow-orange legs. Grassland species.
Mute Swan
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
Upland Goose
A large sheldgoose with strong sexual dimorphism: males are white with black back barring; females are warm brown with barred flanks. Common in Patagonian and Falkland Islands grasslands. Gregarious; forms large flocks outside breeding season. Grazes on short grass and agricultural land.
Mute Swan
The mute swan is one of the heaviest flying birds, with males weighing up to 14 kg. Despite its name, it is not truly mute, producing hissing, grunting, and snorting sounds. Mute swans form lifelong pair bonds and their aggressive defense of nesting territory is well known.