Great Blue Heron vs Gavião-real
Ardea herodias comparado com Harpia harpyja
Side-by-Side Comparison
| Atributo | Great Blue Heron | Gavião-real |
|---|---|---|
| Nome científico | Ardea herodias | Harpia harpyja |
| Ordem | Pelecaniformes | Accipitriformes |
| Família | Ardeidae | Accipitridae |
| Estado de conservação | Least Concern | Vulnerable |
| Comprimento | 117,0 cm (46.1 in) | 100,0 cm (39.4 in) |
| Envergadura | 183,0 cm (72.0 in) | 200,0 cm (78.7 in) |
| Peso | 2400,0 g (84.66 oz) | 7500,0 g (264.55 oz) |
| Dieta | Primarily fish, also frogs, snakes, small mammals, insects, and other birds. Hunts by standing motionless … | Arboreal mammals including sloths, monkeys, and opossums, which make up over 70% of the diet. … |
| Tamanho da postura | 2-7 | 2-3 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Great Blue Heron
Wetlands of all types including marshes, swamps, riverbanks, lake edges, and coastal shores. Also hunts in fields and meadows.
Gavião-real
Tropical lowland rainforests, requiring large tracts of continuous forest with tall emergent trees for nesting.
Song & Call Comparison
Great Blue Heron
Deep, harsh, croaking 'frahnk-frahnk' call in flight. Also gives low guttural grunts at the nest. Alarmed birds give repeated croaks. Mostly silent for such a large wader.
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.
Geographic Range & Migration
Great Blue Heron
North and Central America from Alaska and southern Canada to the Caribbean and Galapagos Islands.
Gavião-real
Central and South America from southern Mexico through Brazil and northern Argentina. Range is shrinking due to deforestation.
Estado de conservação
Great Blue Heron
Gavião-real
How to Tell Them Apart
Great Blue Heron
Blue-grey body with a white head bearing a broad black stripe extending to a long black plume. Rufous-brown thighs. In flight, the neck is folded into an S-shape.
Long, dagger-like yellowish bill
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
About These Birds
Great Blue Heron
The great blue heron is the largest heron in North America, standing up to 1.4 meters tall. These patient hunters can stand motionless for extended periods before striking at prey with remarkable speed. They nest in large colonies called heronries, often returning to the same site year after year.
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.