Arctic Tern vs Hawfinch
Sterna paradisaea 对比 Coccothraustes coccothraustes
Side-by-Side Comparison
| 属性 | Arctic Tern | Hawfinch |
|---|---|---|
| 学名 | Sterna paradisaea | Coccothraustes coccothraustes |
| 目 | Charadriiformes | Passeriformes |
| 科 | Laridae | Fringillidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | 34.0 cm (13.4 in) | 18.0 cm (7.1 in) |
| 翼展 | 80.0 cm (31.5 in) | 32.0 cm (12.6 in) |
| 体重 | 110.0 g (3.88 oz) | 55.0 g (1.94 oz) |
| 食性 | Small fish and crustaceans caught by plunge-diving from the air. Hovers briefly before diving. | Seeds and kernels, especially from cherries, olives, elms, and hornbeams. The bill exerts a force … |
| 产卵数 | 2-3 | 3-5 |
| 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.
Hawfinch
Deciduous and mixed woodland, orchards, parks, and large gardens with mature fruiting trees.
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.
Hawfinch
A sharp, metallic 'tsick' call — the primary vocalization and often all that's heard. Song is a thin, reedy warble. Generally inconspicuous vocally despite its striking appearance.
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.
Hawfinch
Europe, North Africa, and western and central Asia. Partially migratory, with northern populations moving south in winter.
保护状况
Arctic Tern
Hawfinch
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
Hawfinch
Orange-brown head with a black bib and eye stripe. Warm brown back, grey nape, and broad white wing bar. Massive head and bill give a top-heavy appearance.
Enormously powerful, conical, pale bill capable of cracking cherry and olive stones
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。
Hawfinch
锡嘴雀是欧洲和亚洲温带林地的粗壮雀类，喙硕大有力，可以磕开坚硬的果核。羽色棕褐，头部具橙棕色，翅黑色带白斑。栖息于落叶林和混交林，以硬果、浆果和种子为食。冬季常集结成群在林地觅食。