Arctic Tern vs Common Ostrich
Sterna paradisaea 비교 대상 Struthio camelus
Side-by-Side Comparison
| 속성 | Arctic Tern | Common Ostrich |
|---|---|---|
| 학명 | Sterna paradisaea | Struthio camelus |
| 목 | Charadriiformes | Struthioniformes |
| 과 | Laridae | Struthionidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | 34.0 cm (13.4 in) | 210.0 cm (82.7 in) |
| 날개 폭 | 80.0 cm (31.5 in) | 200.0 cm (78.7 in) |
| 체중 | 110.0 g (3.88 oz) | 100000.0 g (3527.40 oz) |
| 식성 | Small fish and crustaceans caught by plunge-diving from the air. Hovers briefly before diving. | Omnivorous — plants, seeds, roots, flowers, insects, and small vertebrates. Swallows pebbles to aid digestion … |
| 산란 수 | 2-3 | 2-11 |
| 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 Ostrich
Open arid and semi-arid habitats including savannas, Sahel, and dry woodlands across Africa.
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 Ostrich
Male produces a surprisingly deep, resonant booming roar — remarkably lion-like. Also gives whistling and hissing sounds. Females and chicks emit softer grunts and squeaks.
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 Ostrich
Sub-Saharan Africa. Formerly also found in the Middle East and parts of Asia. Farmed worldwide.
보전 상태
Arctic Tern
Common Ostrich
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 Ostrich
Males have black body plumage with white wing and tail feathers. Females and immatures are grey-brown. Bare skin on the neck and thighs varies from pink to blue.
Broad, flat bill adapted for an omnivorous diet
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 Ostrich
타조는 세계에서 가장 큰 살아있는 새로, 키가 최대 2.7미터에 달한다. 날지 못하지만 시속 70km까지 달릴 수 있으며 아프리카 사바나와 초원에 서식한다. 세계에서 가장 큰 알을 낳는다.