Mute Swan vs Paradise Shelduck
Cygnus olor ile kıyaslandığında Tadorna variegata
Side-by-Side Comparison
| Özellik | Mute Swan | Paradise Shelduck |
|---|---|---|
| Bilimsel Ad | Cygnus olor | Tadorna variegata |
| Takım | Anseriformes | Anseriformes |
| Familya | Anatidae | Anatidae |
| Koruma Durumu | Least Concern | Least Concern |
| Uzunluk | 152,0 cm (59.8 in) | — |
| Kanat Açıklığı | 235,0 cm (92.5 in) | 70,2 cm (27.6 in) |
| Ağırlık | 11000,0 g (388.01 oz) | 1569,5 g (55.36 oz) |
| Beslenme | Submerged aquatic vegetation, algae, and grass. Feeds by upending in shallow water, reaching depths of … | Eats seeds, grasses, and aquatic invertebrates; grazes near water; dabbles in shallows; diet varies with … |
| Kuluçka Büyüklüğü | 5-7 | 5-15 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Mute Swan
Lakes, slow rivers, estuaries, and coastal lagoons. Often associated with parks and ornamental waters in Europe.
Paradise Shelduck
Open farmland, grassland, lake shores, riverbeds, and wetlands throughout both main islands of New Zealand. Nests in caves, burrows, hollow trees, and dense vegetation. Highly territorial in the breeding season.
Song & Call Comparison
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.
Paradise Shelduck
Male gives a high-pitched whistle; female gives a loud, harsh cackling call 'rak-rak-rak'. New Zealand's only endemic shelduck; calls echoing in open farmland are distinctive.
Geographic Range & Migration
Mute Swan
Native to Europe and western Asia. Introduced to North America, South Africa, Australia, and New Zealand.
Paradise Shelduck
Breeds in Eurasia from the UK to Siberia; winters across sub-Saharan Africa and the Indian subcontinent.
Koruma Durumu
Mute Swan
Paradise Shelduck
How to Tell Them Apart
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
Paradise Shelduck
Extreme dimorphism. Males have black head with green gloss and black-and-chestnut body. Females have pure white head and neck contrasting with rich chestnut-rufous body. Both show white wing patches. New …
About These Birds
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.
Paradise Shelduck
New Zealand's most colorful duck with strong sexual dimorphism: males have dark greenish-black body; females are strikingly white-headed with chestnut body. Endemic and common. Found across New Zealand's grasslands, farmland, and wetlands. A significant game species traditionally harvested by Māori.