Rock Pigeon vs Ryukyu Green-pigeon
Columba livia 对比 Treron permagnus
Side-by-Side Comparison
| 属性 | Rock Pigeon | Ryukyu Green-pigeon |
|---|---|---|
| 学名 | Columba livia | Treron permagnus |
| 目 | Columbiformes | Columbiformes |
| 科 | Columbidae | Columbidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | 33.0 cm (13.0 in) | — |
| 翼展 | 68.0 cm (26.8 in) | 40.1 cm (15.8 in) |
| 体重 | 300.0 g (10.58 oz) | 140.0 g (4.94 oz) |
| 食性 | Seeds, grain, fruit, and human food scraps. Primarily a ground feeder. Feral birds are heavily … | -- |
| 产卵数 | 2 | 2 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Rock Pigeon
Originally cliff-nesting in Mediterranean regions. Now the quintessential urban bird, inhabiting cities worldwide on every continent.
Song & Call Comparison
Rock Pigeon
Soft, rhythmic cooing 'roo-c'too-coo' repeated multiple times, with emphasis on second syllable. Male courtship coo is deeper and more persistent. Wing-clapping on takeoff is loud.
Ryukyu Green-pigeon
Geographic Range & Migration
Rock Pigeon
Native to Europe, North Africa, and South Asia. Feral populations on every continent except Antarctica.
Ryukyu Green-pigeon
保护状况
Rock Pigeon
Ryukyu Green-pigeon
How to Tell Them Apart
Rock Pigeon
Wild-type has a blue-grey body with iridescent green and purple neck feathers, two black wing bars, and a white rump. Feral populations show enormous color variation.
Slender dark bill with a white fleshy cere at the base
Ryukyu Green-pigeon
About These Birds
Rock Pigeon
The rock pigeon is the ancestor of all domestic pigeon breeds and one of the most abundant birds in cities worldwide. Pigeons have served humans as messengers, food, and subjects for scientific research — their homing ability and vision have been studied extensively. Darwin's study of pigeon breeding contributed to his theory of evolution.
Ryukyu Green-pigeon
Ryukyu Green-pigeon (Treron permagnus), 34 cm. Larger than White-bellied Green-pigeon; endemic to the Ryukyu Islands (Japan). Green with a yellowish head and white belly. Inhabits subtropical broadleaf forests; highly dependent on Ficus. Frugivore. Vulnerable due to small island range and ongoing habitat degradation.