Common Ostrich vs House Sparrow
Struthio camelus 比較対象 Passer domesticus
Side-by-Side Comparison
| 属性 | Common Ostrich | House Sparrow |
|---|---|---|
| 学名 | Struthio camelus | Passer domesticus |
| 目 | Struthioniformes | Passeriformes |
| 科 | Struthionidae | Passeridae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 210.0 cm (82.7 in) | 16.0 cm (6.3 in) |
| 翼開長 | 200.0 cm (78.7 in) | 25.0 cm (9.8 in) |
| 体重 | 100000.0 g (3527.40 oz) | 30.0 g (1.06 oz) |
| 食性 | Omnivorous — plants, seeds, roots, flowers, insects, and small vertebrates. Swallows pebbles to aid digestion … | Primarily seeds and grains, supplemented with insects during breeding season. Readily exploits human food scraps … |
| 一腹卵数 | 2-11 | 1-8 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Common Ostrich
Open arid and semi-arid habitats including savannas, Sahel, and dry woodlands across Africa.
House Sparrow
Closely associated with human habitation. Found in cities, towns, farms, and any built environment. Rarely found far from people.
Song & Call Comparison
Common Ostrich
Male produces a surprisingly deep, resonant booming roar — remarkably lion-like. Also gives whistling and hissing sounds. Females and chicks emit softer grunts and squeaks.
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
Common Ostrich
Sub-Saharan Africa. Formerly also found in the Middle East and parts of Asia. Farmed worldwide.
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
Common Ostrich
House Sparrow
How to Tell Them Apart
Common Ostrich
Males have black body plumage with white wing and tail feathers. Females and immatures are grey-brown. Bare skin on the neck and thighs varies from pink to blue.
Broad, flat bill adapted for an omnivorous diet
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
Common Ostrich
ダチョウ（Struthio camelus）— 世界最大の鳥でアフリカのサバンナに生息する。飛べないが時速70kmで走ることができ、世界最大の卵を産む。
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。