Gavião-real vs Rock Pigeon
Harpia harpyja comparado com Columba livia
Side-by-Side Comparison
| Atributo | Gavião-real | Rock Pigeon |
|---|---|---|
| Nome científico | Harpia harpyja | Columba livia |
| Ordem | Accipitriformes | Columbiformes |
| Família | Accipitridae | Columbidae |
| Estado de conservação | Vulnerable | Least Concern |
| Comprimento | 100,0 cm (39.4 in) | 33,0 cm (13.0 in) |
| Envergadura | 200,0 cm (78.7 in) | 68,0 cm (26.8 in) |
| Peso | 7500,0 g (264.55 oz) | 300,0 g (10.58 oz) |
| Dieta | 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 … |
| Tamanho da postura | 2-3 | 2 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Gavião-real
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
Gavião-real
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
Gavião-real
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.
Estado de conservação
Gavião-real
Rock Pigeon
How to Tell Them Apart
Gavião-real
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
Gavião-real
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.