Geelvink Imperial-pigeon vs Rock Pigeon
Ducula geelvinkiana в сравнении с Columba livia
Side-by-Side Comparison
| Характеристика | Geelvink Imperial-pigeon | Rock Pigeon |
|---|---|---|
| Научное название | Ducula geelvinkiana | Columba livia |
| Отряд | Columbiformes | Columbiformes |
| Семейство | Columbidae | Columbidae |
| Охранный статус | Least Concern | Least Concern |
| Длина | — | 33,0 cm (13.0 in) |
| Размах крыльев | 48,3 cm (19.0 in) | 68,0 cm (26.8 in) |
| Масса | 535,0 g (18.87 oz) | 300,0 g (10.58 oz) |
| Питание | -- | Seeds, grain, fruit, and human food scraps. Primarily a ground feeder. Feral birds are heavily … |
| Размер кладки | -- | 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
Geelvink Imperial-pigeon
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
Geelvink Imperial-pigeon
Rock Pigeon
Native to Europe, North Africa, and South Asia. Feral populations on every continent except Antarctica.
Охранный статус
Geelvink Imperial-pigeon
Rock Pigeon
How to Tell Them Apart
Geelvink Imperial-pigeon
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
Geelvink Imperial-pigeon
Geelvink Imperial-pigeon (Ducula geelvinkiana), 40 cm. Dark metallic green with a pale grey head and pinkish-grey underparts. Endemic to islands of Geelvink Bay (Numfor, Biak), West Papua. Inhabits lowland primary forest. Frugivore. Vulnerable; restricted island range.
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.