Arctic Tern vs Indian Skimmer
Sterna paradisaea 비교 대상 Rynchops albicollis
Side-by-Side Comparison
| 속성 | Arctic Tern | Indian Skimmer |
|---|---|---|
| 학명 | Sterna paradisaea | Rynchops albicollis |
| 목 | Charadriiformes | Charadriiformes |
| 과 | Laridae | Laridae |
| 보전 상태 | Least Concern | Endangered |
| 체장 | 34.0 cm (13.4 in) | — |
| 날개 폭 | 80.0 cm (31.5 in) | 74.4 cm (29.3 in) |
| 체중 | 110.0 g (3.88 oz) | 164.0 g (5.78 oz) |
| 식성 | Small fish and crustaceans caught by plunge-diving from the air. Hovers briefly before diving. | -- |
| 산란 수 | 2-3 | 2-5 |
| 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.
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.
Indian Skimmer
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.
Indian Skimmer
보전 상태
Arctic Tern
Indian Skimmer
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
Indian Skimmer
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.
Indian Skimmer
Indian Skimmer: 38–43 cm, black-and-white skimmer with an orange-and-yellow bill and white collar. Resident on large sandy rivers of the Indian subcontinent. VU. Feeds by skimming river surface with protruding lower mandible to catch fish. Severely threatened by sand-mining, dam building, and human disturbance at nesting colonies.