Đại bàng Harpy vs Rock Pigeon
Harpia harpyja so với Columba livia
Side-by-Side Comparison
| Thuộc Tính | Đại bàng Harpy | Rock Pigeon |
|---|---|---|
| Tên Khoa Học | Harpia harpyja | Columba livia |
| Bộ | Accipitriformes | Columbiformes |
| Họ | Accipitridae | Columbidae |
| Tình Trạng Bảo Tồn | Vulnerable | Least Concern |
| Chiều Dài | 100,0 cm (39.4 in) | 33,0 cm (13.0 in) |
| Chiều Dài Sải Cánh | 200,0 cm (78.7 in) | 68,0 cm (26.8 in) |
| Khối Lượng | 7500,0 g (264.55 oz) | 300,0 g (10.58 oz) |
| Chế Độ Ăn | Arboreal mammals including sloths, monkeys, and opossums, which make up over 70% of the diet. … | Seeds, grain, fruit, and human food scraps. Primarily a ground feeder. Feral birds are heavily … |
| Số Trứng | 2-3 | 2 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Đại bàng Harpy
Tropical lowland rainforests, requiring large tracts of continuous forest with tall emergent trees for nesting.
Rock Pigeon
Originally cliff-nesting in Mediterranean regions. Now the quintessential urban bird, inhabiting cities worldwide on every continent.
Song & Call Comparison
Đại bàng Harpy
Rarely heard; emits mournful whistled screams 'wheee-oo' and low croaking grunts near the nest. Vocalizations poorly documented given its remote Amazonian 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
Đại bàng Harpy
Central and South America from southern Mexico through Brazil and northern Argentina. Range is shrinking due to deforestation.
Rock Pigeon
Native to Europe, North Africa, and South Asia. Feral populations on every continent except Antarctica.
Tình Trạng Bảo Tồn
Đại bàng Harpy
Rock Pigeon
How to Tell Them Apart
Đại bàng Harpy
Slate-black upperparts and head with a pale grey breast and white underparts with black barring. A distinctive split grey crest rises when the bird is alarmed.
Massive dark hooked bill, one of the largest of any eagle
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
Đại bàng Harpy
The harpy eagle is among the most powerful raptors in the world, with talons as large as a grizzly bear's claws. It is the national bird of Panama. Deforestation poses the greatest threat to this species, as each breeding pair requires a vast territory of undisturbed forest.
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.