Black Swan vs Red-tailed Hawk
Cygnus atratus เปรียบเทียบกับ Buteo jamaicensis
Side-by-Side Comparison
| คุณสมบัติ | Black Swan | Red-tailed Hawk |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Cygnus atratus | Buteo jamaicensis |
| อันดับ | Anseriformes | Accipitriformes |
| วงศ์ตระกูล | Anatidae | Accipitridae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | 130.0 cm (51.2 in) | 53.0 cm (20.9 in) |
| กว้างปีก | 190.0 cm (74.8 in) | 124.0 cm (48.8 in) |
| น้ำหนัก | 6200.0 g (218.70 oz) | 1080.0 g (38.10 oz) |
| อาหาร | Aquatic vegetation and algae, supplemented with grain and pasture grasses. Feeds by upending in shallow … | Small to medium mammals, especially voles, mice, and rabbits. Also takes birds, reptiles, and large … |
| จำนวนไข่ | 4-6 | 2-4 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
ถิ่นที่อยู่อาศัยร่วมกัน
Black Swan only
ไม่มี
Red-tailed Hawk only
Black Swan
Lakes, rivers, swamps, and coastal waters across Australia. Also found in ornamental lakes in parks.
Red-tailed Hawk
Open country with scattered elevated perches such as trees, poles, and cliffs. Adaptable to farmland, grasslands, roadsides, and suburban areas.
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.
Red-tailed Hawk
Iconic, raspy descending scream: 'kreeeeee-ar', often used in films for all raptors. Gives short barking 'kak' notes near nest. Juveniles beg with persistent squealing whistles.
Geographic Range & Migration
Black Swan
Australia, primarily in the southeast and southwest. Introduced populations in New Zealand, Japan, and western Europe.
Red-tailed Hawk
North America from Alaska to Panama, including the Caribbean. One of the most common raptors in North America.
สถานะการอนุรักษ์
Black Swan
Red-tailed Hawk
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
Red-tailed Hawk
Variable plumage from pale to dark morphs. Most adults have rich brown upperparts, a pale breast with a dark belly band, and the characteristic rufous-red tail.
Dark 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.
Red-tailed Hawk
The red-tailed hawk is the most widespread and common hawk in North America. Its screaming cry is so iconic that it is often dubbed over bald eagle footage in films and television. These adaptable raptors thrive in human-altered landscapes and are a familiar sight perched along highways.