Black Swan vs беркут
Cygnus atratus в сравнении с Aquila chrysaetos
Side-by-Side Comparison
| Характеристика | Black Swan | беркут |
|---|---|---|
| Научное название | Cygnus atratus | Aquila chrysaetos |
| Отряд | Anseriformes | Accipitriformes |
| Семейство | Anatidae | Accipitridae |
| Охранный статус | Least Concern | Least Concern |
| Длина | 130,0 cm (51.2 in) | 81,0 cm (31.9 in) |
| Размах крыльев | 190,0 cm (74.8 in) | 212,0 cm (83.5 in) |
| Масса | 6200,0 g (218.70 oz) | 4050,0 g (142.86 oz) |
| Питание | Aquatic vegetation and algae, supplemented with grain and pasture grasses. Feeds by upending in shallow … | Mammals including rabbits, hares, ground squirrels, and marmots. Also takes birds, reptiles, and carrion. Hunts … |
| Размер кладки | 4-6 | 1-3 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Black Swan
Lakes, rivers, swamps, and coastal waters across Australia. Also found in ornamental lakes in parks.
беркут
Open and semi-open country including mountains, hills, and tundra. Prefers areas with cliffs or large trees for nesting and open terrain for hunting.
Song & Call Comparison
Black Swan
Gives a musical bugling 'boo-boo-boo' in flight and softer honking on water. Less vocal than Mute Swan; produces a baying call when alarmed. Wings whistle softly in flight.
беркут
Mostly silent; emits a thin, high-pitched whistle 'kee-kee-kee' near the eyrie. Also gives low barking 'yak-yak' and mewing calls. Far less vocal than its size suggests.
Geographic Range & Migration
Black Swan
Australia, primarily in the southeast and southwest. Introduced populations in New Zealand, Japan, and western Europe.
беркут
Holarctic distribution across North America, Europe, North Africa, and Asia. The most widely distributed eagle species.
Охранный статус
Black Swan
беркут
How to Tell Them Apart
Black Swan
Almost entirely black with white flight feathers visible in flight. Red bill with a white band near the tip. Dark red to reddish-brown iris.
Bright red bill with a pale tip and prominent white band
беркут
Dark brown overall with a golden-bronze sheen on the nape and crown. Juveniles show distinct white patches at the base of the tail and in the wings.
Dark horn-colored hooked bill with a yellow cere
About These Birds
Black Swan
The black swan was once considered impossible by Europeans who believed all swans were white, making it a famous philosophical example of inductive reasoning failure. It is the state emblem of Western Australia. Black swans form lifelong pair bonds and both parents share in incubation and care of cygnets.
беркут
The golden eagle is one of the most powerful and agile raptors in the Northern Hemisphere. Revered by many cultures, it has been used in falconry for centuries, particularly by Kazakh eagle hunters of Central Asia. Golden eagles can dive at speeds exceeding 240 km/h when pursuing prey.