Arctic Tern vs Common Kestrel
Sterna paradisaea 비교 대상 Falco tinnunculus
Side-by-Side Comparison
| 속성 | Arctic Tern | Common Kestrel |
|---|---|---|
| 학명 | Sterna paradisaea | Falco tinnunculus |
| 목 | Charadriiformes | Falconiformes |
| 과 | Laridae | Falconidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | 34.0 cm (13.4 in) | 34.0 cm (13.4 in) |
| 날개 폭 | 80.0 cm (31.5 in) | 74.0 cm (29.1 in) |
| 체중 | 110.0 g (3.88 oz) | 190.0 g (6.70 oz) |
| 식성 | Small fish and crustaceans caught by plunge-diving from the air. Hovers briefly before diving. | Primarily voles and mice, also lizards, large insects, and small birds. Hunts by hovering at … |
| 산란 수 | 2-3 | 1-7 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
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.
Common Kestrel
Open country including farmland, grasslands, moorland, and urban areas. Common along motorways and in cities across Europe.
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.
Common Kestrel
A shrill, repeated 'kee-kee-kee-kee' or 'kik-ik-ik', especially near nest. Alarm call is a nasal chattering. Generally less vocal than larger falcons. Calls ring clearly in open country.
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.
Common Kestrel
Europe, Asia, and Africa. One of the most common and widespread raptors in the Old World.
보전 상태
Arctic Tern
Common Kestrel
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
Common Kestrel
Males have a blue-grey head and tail with a rufous back spotted with black. Females are rufous-brown with heavy barring. Both have a dark moustachial stripe.
Short, hooked grey bill with a yellow cere
About These Birds
Arctic Tern
북극제비갈매기는 모든 동물 중 가장 긴 이동 기록을 보유하고 있어, 매년 북극에서 남극까지 약 7만 km를 왕복합니다. 약 30년의 수명 동안 달을 세 번 왕복하는 거리를 날아다닙니다. 지구상 어떤 생물보다 많은 일광을 경험하는 놀라운 새입니다.
Common Kestrel
황조롱이는 유럽에서 가장 흔한 매로, 날아오르며 정지 비행하는 능력으로 유명하다. 적갈색 등과 뾰족한 날개를 가지며 고속도로 옆과 도심 지역을 포함한 다양한 서식지에서 볼 수 있다.