Arctic Tern vs House Sparrow
Sterna paradisaea 对比 Passer domesticus
Side-by-Side Comparison
| 属性 | Arctic Tern | House Sparrow |
|---|---|---|
| 学名 | Sterna paradisaea | Passer domesticus |
| 目 | Charadriiformes | Passeriformes |
| 科 | Laridae | Passeridae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | 34.0 cm (13.4 in) | 16.0 cm (6.3 in) |
| 翼展 | 80.0 cm (31.5 in) | 25.0 cm (9.8 in) |
| 体重 | 110.0 g (3.88 oz) | 30.0 g (1.06 oz) |
| 食性 | Small fish and crustaceans caught by plunge-diving from the air. Hovers briefly before diving. | Primarily seeds and grains, supplemented with insects during breeding season. Readily exploits human food scraps … |
| 产卵数 | 2-3 | 1-8 |
| 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.
House Sparrow
Closely associated with human habitation. Found in cities, towns, farms, and any built environment. Rarely found far from people.
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.
House Sparrow
Monotonous series of chirping 'cheep' and 'chirrup' notes. Male gives 'chilp' song repeatedly. Flocks produce constant chirping chatter. No melodic song; purely functional calls.
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.
House Sparrow
Native to Europe, Asia, and North Africa. Introduced to every continent except Antarctica, making it the most widely distributed wild bird.
保护状况
Arctic Tern
House Sparrow
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
House Sparrow
Males have grey crowns, chestnut napes, black bibs, and streaked brown backs. Females and juveniles are plain buffy-brown with a pale eyebrow stripe.
Short, stout, conical bill — black in breeding males, yellowish in non-breeding
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。
House Sparrow
家麻雀是全球分布最广的鸟类之一，与人类关系极为密切。雄鸟头顶灰色，喉部黑色，翅具栗色。广泛分布于城市、农村和郊区，以谷物、种子和昆虫为食。因人类扩张而随之传播至世界各地，但近年来在某些地区种群下降明显。