Arctic Tern vs Hoopoe
Sterna paradisaea 比較対象 Upupa epops
Side-by-Side Comparison
| 属性 | Arctic Tern | Hoopoe |
|---|---|---|
| 学名 | Sterna paradisaea | Upupa epops |
| 目 | Charadriiformes | Bucerotiformes |
| 科 | Laridae | Upupidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 34.0 cm (13.4 in) | 28.0 cm (11.0 in) |
| 翼開長 | 80.0 cm (31.5 in) | 46.0 cm (18.1 in) |
| 体重 | 110.0 g (3.88 oz) | 62.0 g (2.19 oz) |
| 食性 | Small fish and crustaceans caught by plunge-diving from the air. Hovers briefly before diving. | Insects and larvae probed from the ground, especially beetle grubs, crickets, and caterpillars. Occasionally takes … |
| 一腹卵数 | 2-3 | 2-12 |
| 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.
Hoopoe
Open woodland, orchards, vineyards, parkland, and grassland with bare or sparsely vegetated ground for foraging.
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.
Hoopoe
The eponymous call: a soft, far-carrying 'oop-oop-oop', repeated in triplets or quadruplets. Given from a hidden perch; mellow and flute-like. Contact call is a thin 'cherrr'.
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.
Hoopoe
Europe, Asia, and Africa. Northern populations are migratory. A widespread species across the Old World.
保全状況
Arctic Tern
Hoopoe
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
Hoopoe
Pinkish-brown body with dramatically barred black and white wings and tail. Long, erectile, fan-shaped crest tipped with black. Undulating butterfly-like flight.
Long, thin, slightly decurved bill for probing soil
About These Birds
Arctic Tern
キョクアジサシはあらゆる動物の中で最長の渡りを行い、毎年北極と南極を往復する約7万kmの旅をする。30年の寿命の中に、月への往復3回分に相当する飛翔距離を積み重ねる可能性がある。地球上でどの生物よりも多くの昼光を経験するこの驚異的な鳥は、太陽を追い続ける。
Hoopoe
ヤツガシラはアフリカ・ユーラシアに広く生息する中型の鳥（体長25〜29 cm）。オレンジ色の羽衣と黒白の翼・尾・先端が黒い扇状の冠羽、長い下向きに曲がったくちばしが特徴。地面をつつきながら昆虫・ムカデ・ミミズを採食。イスラエルの国鳥。