Comoro Olive-pigeon vs Rock Pigeon
Columba pollenii compared with Columba livia
Side-by-Side Comparison
| Attribute | Comoro Olive-pigeon | Rock Pigeon |
|---|---|---|
| Scientific Name | Columba pollenii | Columba livia |
| Order | Columbiformes | Columbiformes |
| Family | Columbidae | Columbidae |
| Conservation Status | Near Threatened | Least Concern |
| Length | — | 33.0 cm (13.0 in) |
| Wingspan | 44.9 cm (17.7 in) | 68.0 cm (26.8 in) |
| Weight | 308.5 g (10.88 oz) | 300.0 g (10.58 oz) |
| Diet | -- | Seeds, grain, fruit, and human food scraps. Primarily a ground feeder. Feral birds are heavily … |
| Clutch Size | 1 | 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
Comoro Olive-pigeon
Deep, resonant cooing; rich notes with carrying quality through dense highland Asian forest. Vocalization pattern typical of this species in its native habitat.
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.
Geographic Range & Migration
Comoro Olive-pigeon
Rock Pigeon
Native to Europe, North Africa, and South Asia. Feral populations on every continent except Antarctica.
Conservation Status
Comoro Olive-pigeon
Rock Pigeon
How to Tell Them Apart
Comoro Olive-pigeon
Comoro Olive-pigeon: olive-gray; yellow orbital ring; purple-green neck gloss; Comoro islands endemic pigeon; island distribution
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
About These Birds
Comoro Olive-pigeon
Comoro Olive-pigeon (Columba pollenii) — 36–40 cm. Dark grey with purple gloss; yellow bill and orbital ring; spotted wing coverts. Endemic to the Comoro Islands in forest. Frugivore. Vulnerable; restricted island range and forest loss.
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.