House Sparrow vs ヘビクイワシ
Passer domesticus 比較対象 Sagittarius serpentarius
Side-by-Side Comparison
| 属性 | House Sparrow | ヘビクイワシ |
|---|---|---|
| 学名 | Passer domesticus | Sagittarius serpentarius |
| 目 | Passeriformes | Accipitriformes |
| 科 | Passeridae | Sagittariidae |
| 保全状況 | Least Concern | Endangered |
| 体長 | 16.0 cm (6.3 in) | 130.0 cm (51.2 in) |
| 翼開長 | 25.0 cm (9.8 in) | 210.0 cm (82.7 in) |
| 体重 | 30.0 g (1.06 oz) | 3700.0 g (130.51 oz) |
| 食性 | Primarily seeds and grains, supplemented with insects during breeding season. Readily exploits human food scraps … | Snakes, lizards, small mammals, and large insects. Hunts on foot, stomping prey to death with … |
| 一腹卵数 | 1-8 | 1-4 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
House Sparrow
Closely associated with human habitation. Found in cities, towns, farms, and any built environment. Rarely found far from people.
ヘビクイワシ
Open grasslands, savannas, and light woodland across sub-Saharan Africa. Avoids dense forests and very arid regions.
Song & Call Comparison
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.
ヘビクイワシ
A surprisingly deep, resonant croaking 'kowrr-kowrr' often heard at dawn on African savannas. Also gives pig-like grunting sounds. Mostly silent compared to true songbirds.
Geographic Range & Migration
House Sparrow
Native to Europe, Asia, and North Africa. Introduced to every continent except Antarctica, making it the most widely distributed wild bird.
ヘビクイワシ
Sub-Saharan Africa from Senegal and Somalia south to South Africa. Resident throughout its range.
保全状況
House Sparrow
ヘビクイワシ
How to Tell Them Apart
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
ヘビクイワシ
Grey body plumage with black flight feathers and thigh feathers. Distinctive long black crest feathers trail from the back of the head. Orange-red bare facial skin.
Short, strong, hooked greyish bill with a yellowish cere
About These Birds
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。
ヘビクイワシ
The secretary bird is the only raptor that hunts primarily on foot, striding through grasslands on crane-like legs up to 1.2 meters tall. Its name may derive from the crest feathers resembling quill pens tucked behind a secretary's ear. The species is classified as Endangered due to habitat loss and decline across much of its range.