Philippine Duck vs Black Swan
Anas luzonica в сравнении с Cygnus atratus
Side-by-Side Comparison
| Характеристика | Philippine Duck | Black Swan |
|---|---|---|
| Научное название | Anas luzonica | Cygnus atratus |
| Отряд | Anseriformes | Anseriformes |
| Семейство | Anatidae | Anatidae |
| Охранный статус | Vulnerable | Least Concern |
| Длина | — | 130,0 cm (51.2 in) |
| Размах крыльев | 47,4 cm (18.7 in) | 190,0 cm (74.8 in) |
| Масса | 850,1666666666666 g (29.99 oz) | 6200,0 g (218.70 oz) |
| Питание | Dives for fish in fast Andean rivers; strong swimmer; serrated bill grips slippery prey; diet … | Aquatic vegetation and algae, supplemented with grain and pasture grasses. Feeds by upending in shallow … |
| Размер кладки | 7-16 | 4-6 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Philippine Duck
Freshwater lakes, rivers, marshes, mangroves, and rice paddies across the Philippine archipelago. Primarily in lowland and foothill areas below 2,500 m. Threatened by hunting and wetland conversion.
Black Swan
Lakes, rivers, swamps, and coastal waters across Australia. Also found in ornamental lakes in parks.
Song & Call Comparison
Philippine Duck
Female gives a loud, descending quacking series; male produces a soft, nasal note. Strong quacking calls echo across Philippine wetlands; alarm is a rapid, emphatic quacking burst.
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.
Geographic Range & Migration
Philippine Duck
Found from Morocco and sub-Saharan Africa through the Middle East to South Asia. Largely sedentary in freshwater habitats.
Black Swan
Australia, primarily in the southeast and southwest. Introduced populations in New Zealand, Japan, and western Europe.
Охранный статус
Philippine Duck
Black Swan
How to Tell Them Apart
Philippine Duck
Cinnamon-buff head and neck; dark brown-black crown and eye stripe conspicuous. Body grayish-brown with darker back. Iridescent green speculum. Blue-gray bill; orange legs. Sexes similar. Philippine endemic.
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
About These Birds
Philippine Duck
A medium-sized duck with a distinctive rufous head and neck, grey-brown body, and blue-green speculum. Endemic to the Philippines. Listed as Vulnerable; threatened by hunting and wetland degradation. Found in a range of lowland freshwater habitats across the Philippines.
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.