Arctic Tern vs Red-tailed Hawk
Sterna paradisaea เปรียบเทียบกับ Buteo jamaicensis
Side-by-Side Comparison
| คุณสมบัติ | Arctic Tern | Red-tailed Hawk |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Sterna paradisaea | Buteo jamaicensis |
| อันดับ | Charadriiformes | Accipitriformes |
| วงศ์ตระกูล | Laridae | Accipitridae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | 34.0 cm (13.4 in) | 53.0 cm (20.9 in) |
| กว้างปีก | 80.0 cm (31.5 in) | 124.0 cm (48.8 in) |
| น้ำหนัก | 110.0 g (3.88 oz) | 1080.0 g (38.10 oz) |
| อาหาร | Small fish and crustaceans caught by plunge-diving from the air. Hovers briefly before diving. | Small to medium mammals, especially voles, mice, and rabbits. Also takes birds, reptiles, and large … |
| จำนวนไข่ | 2-3 | 2-4 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
ถิ่นที่อยู่อาศัยร่วมกัน
Arctic Tern only
ไม่มี
Arctic Tern
Breeds on coastal and tundra habitats. Spends most of its life at sea over the open ocean. Nests in colonies on beaches and rocky shores.
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
Arctic Tern
A sharp, grating 'kree-yah' alarm call. Also gives 'kik-kik-kik' near the nest. Highly aggressive vocally during the Arctic breeding season. Calls are harsh and insistent.
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
Arctic Tern
Breeds in the Arctic and sub-Arctic. Migrates to the Antarctic, experiencing two summers per year. Found on every ocean.
Red-tailed Hawk
North America from Alaska to Panama, including the Caribbean. One of the most common raptors in North America.
สถานะการอนุรักษ์
Arctic Tern
Red-tailed Hawk
How to Tell Them Apart
Arctic Tern
Pale grey upperparts, white underparts with a black cap. Blood-red bill and short red legs. Deeply forked tail streamers. Winter adults lose the full black cap.
Slender, pointed, bright red bill
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
Arctic Tern
The Arctic tern holds the record for the longest known migration of any animal, traveling roughly 70,000 km annually from Arctic to Antarctic and back. Over its 30-year lifespan, it may fly the equivalent of three round trips to the Moon. This remarkable bird experiences more daylight than any other creature on Earth.
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.