harpie féroce vs Northern Gannet
Harpia harpyja comparé à Morus bassanus
Side-by-Side Comparison
| Attribut | harpie féroce | Northern Gannet |
|---|---|---|
| Nom scientifique | Harpia harpyja | Morus bassanus |
| Ordre | Accipitriformes | Suliformes |
| Famille | Accipitridae | Sulidae |
| Statut de conservation | Vulnerable | Least Concern |
| Longueur | 100,0 cm (39.4 in) | 93,0 cm (36.6 in) |
| Envergure | 200,0 cm (78.7 in) | 180,0 cm (70.9 in) |
| Poids | 7500,0 g (264.55 oz) | 3000,0 g (105.82 oz) |
| Régime alimentaire | Arboreal mammals including sloths, monkeys, and opossums, which make up over 70% of the diet. … | Shoaling fish, especially mackerel, herring, and capelin. Plunge-dives from heights of 30 meters at speeds … |
| Taille de la couvée | 2-3 | 1 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
harpie féroce
Tropical lowland rainforests, requiring large tracts of continuous forest with tall emergent trees for nesting.
Northern Gannet
Open ocean and coastal waters. Breeds in dense colonies on steep rocky islands and sea stacks.
Song & Call Comparison
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.
Northern Gannet
Loud, harsh 'urrah-urrah' grunting and croaking at breeding colonies on sea stacks. Also gives a softer 'karrr' in flight. Large colonies are extremely noisy during the breeding season.
Geographic Range & Migration
harpie féroce
Central and South America from southern Mexico through Brazil and northern Argentina. Range is shrinking due to deforestation.
Northern Gannet
North Atlantic, breeding from Newfoundland and Gulf of St. Lawrence to Norway, Iceland, and Britain. Winters at sea south to the tropics.
Statut de conservation
harpie féroce
Northern Gannet
How to Tell Them Apart
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
Northern Gannet
Brilliant white body with black wingtips and a golden-yellow wash on the head and nape. Blue-grey bill with dark lines and pale blue eye-ring.
Long, straight, pointed, pale blue-grey bill with serrated edges
About These Birds
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.
Northern Gannet
The northern gannet is a spectacular plunge-diver, folding its two-meter wingspan into an arrow shape to hit the water at up to 100 km/h. Air sacs under the skin and a reinforced skull protect it from the impact. Bass Rock in Scotland hosts over 150,000 gannets, the largest single colony of any seabird in the world.