American Crow vs Южноамериканская гарпия
Corvus brachyrhynchos в сравнении с Harpia harpyja
Side-by-Side Comparison
| Характеристика | American Crow | Южноамериканская гарпия |
|---|---|---|
| Научное название | Corvus brachyrhynchos | Harpia harpyja |
| Отряд | Passeriformes | Accipitriformes |
| Семейство | Corvidae | Accipitridae |
| Охранный статус | Least Concern | Vulnerable |
| Длина | 45,0 cm (17.7 in) | 100,0 cm (39.4 in) |
| Размах крыльев | 99,0 cm (39.0 in) | 200,0 cm (78.7 in) |
| Масса | 450,0 g (15.87 oz) | 7500,0 g (264.55 oz) |
| Питание | Highly omnivorous — insects, earthworms, seeds, fruit, eggs, nestlings, carrion, and human food waste. Among … | Arboreal mammals including sloths, monkeys, and opossums, which make up over 70% of the diet. … |
| Размер кладки | 3-7 | 2-3 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Общие среды обитания
American Crow only
Южноамериканская гарпия only
Нет
American Crow
Extremely adaptable — found in farmland, open woodland, suburban neighborhoods, parking lots, and urban parks.
Южноамериканская гарпия
Tropical lowland rainforests, requiring large tracts of continuous forest with tall emergent trees for nesting.
Song & Call Comparison
American Crow
Classic 'caw-caw-caw' repeated in series. Family groups use distinct dialects. Also gives rattling, knocking, and a short 'cah' flight call. Highly social and vocal.
Южноамериканская гарпия
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
American Crow
North America from southern Canada through the United States to northern Mexico.
Южноамериканская гарпия
Central and South America from southern Mexico through Brazil and northern Argentina. Range is shrinking due to deforestation.
Охранный статус
American Crow
Южноамериканская гарпия
How to Tell Them Apart
American Crow
All black with a slight glossy sheen. Squared-off tail and smooth throat distinguish it from the common raven.
Straight, sturdy black bill smaller than a raven's
Южноамериканская гарпия
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
American Crow
The American crow is one of North America's most familiar and intelligent birds. Research has shown they can recognize individual human faces and communicate perceived threats to other crows. They form large winter roosts of up to hundreds of thousands of individuals in some cities.
Южноамериканская гарпия
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.