American Robin vs House Sparrow
Turdus migratorius 比較対象 Passer domesticus
Side-by-Side Comparison
| 属性 | American Robin | House Sparrow |
|---|---|---|
| 学名 | Turdus migratorius | Passer domesticus |
| 目 | Passeriformes | Passeriformes |
| 科 | Turdidae | Passeridae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 25.0 cm (9.8 in) | 16.0 cm (6.3 in) |
| 翼開長 | 36.0 cm (14.2 in) | 25.0 cm (9.8 in) |
| 体重 | 77.0 g (2.72 oz) | 30.0 g (1.06 oz) |
| 食性 | Earthworms, insects, and fruit. Famously hunts earthworms on lawns by running, stopping, and tilting its … | Primarily seeds and grains, supplemented with insects during breeding season. Readily exploits human food scraps … |
| 一腹卵数 | 2-4 | 1-8 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
American Robin
Lawns, parks, gardens, farmland, and forest edges. One of the most familiar birds in suburban North America.
House Sparrow
Closely associated with human habitation. Found in cities, towns, farms, and any built environment. Rarely found far from people.
Song & Call Comparison
American Robin
A clear, caroling song of 2-3 note phrases: 'cheerily, cheer-up, cheerio'. Sings from dawn perches. Sharp 'tut-tut-tut' alarm call and thin 'seeee' flight note.
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
American Robin
North America from Alaska and Canada to Mexico. Northern populations migrate south in winter; southern populations are largely resident.
House Sparrow
Native to Europe, Asia, and North Africa. Introduced to every continent except Antarctica, making it the most widely distributed wild bird.
保全状況
American Robin
House Sparrow
How to Tell Them Apart
American Robin
Dark grey-brown upperparts with a warm brick-red breast and belly. White eye-ring and streaked white throat. Female slightly paler.
Bright yellow bill with a dark tip
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
American Robin
北米全域に分布し、春の訪れを告げる鳥として知られるツグミ（体長23〜28cm）。オレンジ色の腹と黒い頭部が特徴的。Turdus migratorius（アメリカコマツグミ）は北米最も親しまれた野鳥の一つで、芝生でミミズを引き抜く姿が日常風景として親しまれている。連邦政府と各州で厳重に保護されており、3州の州鳥に指定されている。Turdidae科。
House Sparrow
スズメは人間の居住地に最も密接に関連する鳥の一つで、世界で最も広く分布する鳥種の一つ。原産地はヨーロッパ・アジアだが、人間とともに世界中に持ち込まれた。