pygargue à tête blanche vs harpie féroce
Haliaeetus leucocephalus comparé à Harpia harpyja
Side-by-Side Comparison
| Attribut | pygargue à tête blanche | harpie féroce |
|---|---|---|
| Nom scientifique | Haliaeetus leucocephalus | Harpia harpyja |
| Ordre | Accipitriformes | Accipitriformes |
| Famille | Accipitridae | Accipitridae |
| Statut de conservation | Least Concern | Vulnerable |
| Longueur | 79,0 cm (31.1 in) | 100,0 cm (39.4 in) |
| Envergure | 203,0 cm (79.9 in) | 200,0 cm (78.7 in) |
| Poids | 4300,0 g (151.68 oz) | 7500,0 g (264.55 oz) |
| Régime alimentaire | Primarily fish, also waterfowl, small mammals, and carrion. Hunts by swooping down to snatch fish … | Arboreal mammals including sloths, monkeys, and opossums, which make up over 70% of the diet. … |
| Taille de la couvée | 1-4 | 2-3 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Habitats partagés
pygargue à tête blanche only
harpie féroce only
Aucun(e)
pygargue à tête blanche
Large bodies of open water including coasts, rivers, and lakes with abundant fish and old-growth trees for nesting.
harpie féroce
Tropical lowland rainforests, requiring large tracts of continuous forest with tall emergent trees for nesting.
Song & Call Comparison
pygargue à tête blanche
High-pitched, chattering whistle: a rapid 'kleek-kik-ik-ik-ik'. Surprisingly weak and thin for such a large raptor. Also gives a lower 'kwit-kwit' call near the nest.
harpie féroce
Rarely heard; emits mournful whistled screams 'wheee-oo' and low croaking grunts near the nest. Vocalizations poorly documented given its remote Amazonian habitat.
Geographic Range & Migration
pygargue à tête blanche
North America from Alaska and Canada through the contiguous United States to northern Mexico.
harpie féroce
Central and South America from southern Mexico through Brazil and northern Argentina. Range is shrinking due to deforestation.
Statut de conservation
pygargue à tête blanche
harpie féroce
How to Tell Them Apart
pygargue à tête blanche
Adults have a dark brown body with a striking white head and tail. Juveniles are mottled brown and white, reaching full adult plumage at age five.
Large, hooked, bright yellow bill
harpie féroce
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
About These Birds
pygargue à tête blanche
The bald eagle is the national bird and symbol of the United States. Once endangered due to DDT pesticide use, it made a remarkable recovery and was removed from the endangered species list in 2007. These powerful raptors build the largest tree nests of any bird, some weighing over two tons.
harpie féroce
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.