Rock Pigeon vs Sao Tome Green-pigeon
Columba livia so với Treron sanctithomae
Side-by-Side Comparison
| Thuộc Tính | Rock Pigeon | Sao Tome Green-pigeon |
|---|---|---|
| Tên Khoa Học | Columba livia | Treron sanctithomae |
| Bộ | Columbiformes | Columbiformes |
| Họ | Columbidae | Columbidae |
| Tình Trạng Bảo Tồn | Least Concern | Endangered |
| Chiều Dài | 33,0 cm (13.0 in) | — |
| Chiều Dài Sải Cánh | 68,0 cm (26.8 in) | 34,1 cm (13.4 in) |
| Khối Lượng | 300,0 g (10.58 oz) | 205,0 g (7.23 oz) |
| Chế Độ Ăn | Seeds, grain, fruit, and human food scraps. Primarily a ground feeder. Feral birds are heavily … | -- |
| Số Trứng | 2 | 1 |
| 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.
Sao Tome Green-pigeon
Geographic Range & Migration
Rock Pigeon
Native to Europe, North Africa, and South Asia. Feral populations on every continent except Antarctica.
Sao Tome Green-pigeon
Tình Trạng Bảo Tồn
Rock Pigeon
Sao Tome 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
Sao Tome 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.
Sao Tome Green-pigeon
Sao Tome Green-pigeon (Treron sanctithomae), 27 cm. Endemic to São Tomé Island, Gulf of Guinea. Green overall with a yellow forehead and pale grey underparts. Occupies primary and secondary forest up to 1,400 m. Frugivore taking figs and forest fruits. Vulnerable; threatened by habitat loss on this small oceanic island.