Arctic Tern vs Keel-billed Toucan
Sterna paradisaea 对比 Ramphastos sulfuratus
Side-by-Side Comparison
| 属性 | Arctic Tern | Keel-billed Toucan |
|---|---|---|
| 学名 | Sterna paradisaea | Ramphastos sulfuratus |
| 目 | Charadriiformes | Piciformes |
| 科 | Laridae | Ramphastidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | 34.0 cm (13.4 in) | 50.0 cm (19.7 in) |
| 翼展 | 80.0 cm (31.5 in) | 56.0 cm (22.0 in) |
| 体重 | 110.0 g (3.88 oz) | 400.0 g (14.11 oz) |
| 食性 | Small fish and crustaceans caught by plunge-diving from the air. Hovers briefly before diving. | Primarily fruit, supplemented with insects, lizards, eggs, and nestlings. Uses its long bill to reach … |
| 产卵数 | 2-3 | 1-4 |
| 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.
Keel-billed Toucan
Tropical and subtropical lowland rainforests and forest edges from sea level to about 1,900 meters.
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.
Keel-billed Toucan
Produces a repeated frog-like croaking 'prrrek-prrrek' or 'terrio-terrio'. Not melodic; the call resembles a mechanical rattle or frog. Also gives bill-clattering.
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.
Keel-billed Toucan
Southern Mexico through Central America to northern Colombia and northwestern Venezuela.
保护状况
Arctic Tern
Keel-billed Toucan
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
Keel-billed Toucan
Black body with a bright yellow throat and chest. Red undertail coverts. The enormous bill is green with orange sides, a blue patch, and a red tip.
Enormous, lightweight, multicolored bill up to 15 cm long — green, orange, blue, and red
About These Birds
Arctic Tern
北极燕鸥进行所有动物中最长的迁徙，每年从北极繁殖地飞往南极越冬地，往返距离超过70,000公里。体型纤细，翼展约80厘米，全身主要为白色，具黑色头冠和红色喙。无危；繁殖于北极和亚北极海岸及岛屿，全球种群约200万只。
Keel-billed Toucan
The keel-billed toucan is the national bird of Belize and one of the most recognizable birds in the Neotropics. Its oversized bill, which can be a third of its body length, is actually very light due to its hollow honeycomb structure. Toucans roost communally, with up to six adults squeezing into a single tree cavity.