Knob-billed Fruit-dove vs Rock Pigeon
Ptilinopus insolitus comparado com Columba livia
Side-by-Side Comparison
| Atributo | Knob-billed Fruit-dove | Rock Pigeon |
|---|---|---|
| Nome científico | Ptilinopus insolitus | Columba livia |
| Ordem | Columbiformes | Columbiformes |
| Família | Columbidae | Columbidae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | — | 33,0 cm (13.0 in) |
| Envergadura | 25,6 cm (10.1 in) | 68,0 cm (26.8 in) |
| Peso | 134,0 g (4.73 oz) | 300,0 g (10.58 oz) |
| Dieta | -- | Seeds, grain, fruit, and human food scraps. Primarily a ground feeder. Feral birds are heavily … |
| Tamanho da postura | 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
Knob-billed Fruit-dove
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
Knob-billed Fruit-dove
Rock Pigeon
Native to Europe, North Africa, and South Asia. Feral populations on every continent except Antarctica.
Estado de conservação
Knob-billed Fruit-dove
Rock Pigeon
How to Tell Them Apart
Knob-billed Fruit-dove
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
Knob-billed Fruit-dove
Knob-billed Fruit-dove (Ptilinopus insolitus), 24 cm. Distinctive knob on the upper mandible base; green above with a grey head and yellow-orange underparts. Endemic to the Bismarck Archipelago. Inhabits lowland primary forest. Frugivore. Least Concern; moderately common.
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.