Cockatiel vs Harpy Eagle
Nymphicus hollandicus compared with Harpia harpyja
Side-by-Side Comparison
| Attribute | Cockatiel | Harpy Eagle |
|---|---|---|
| Scientific Name | Nymphicus hollandicus | Harpia harpyja |
| Order | Psittaciformes | Accipitriformes |
| Family | Cacatuidae | Accipitridae |
| Conservation Status | Least Concern | Vulnerable |
| Length | 32.0 cm (12.6 in) | 100.0 cm (39.4 in) |
| Wingspan | 40.0 cm (15.7 in) | 200.0 cm (78.7 in) |
| Weight | 90.0 g (3.17 oz) | 7500.0 g (264.55 oz) |
| Diet | Seeds, grain, berries, and plant material. Forages on the ground in open areas. In captivity, … | Arboreal mammals including sloths, monkeys, and opossums, which make up over 70% of the diet. … |
| Clutch Size | 1-7 | 2-3 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Cockatiel
Open arid and semi-arid habitats including scrubland, farmland, and woodland near water in Australia.
Harpy Eagle
Tropical lowland rainforests, requiring large tracts of continuous forest with tall emergent trees for nesting.
Song & Call Comparison
Cockatiel
A loud, whistled 'weet' or 'weeeet'. Males whistle a melodic series; contact call is a high nasal 'ny'. Capable of mimicry in captivity. Song is relatively simple but pleasant.
Harpy Eagle
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
Cockatiel
Interior of Australia, generally avoiding coastal areas. The second most popular pet bird worldwide.
Harpy Eagle
Central and South America from southern Mexico through Brazil and northern Argentina. Range is shrinking due to deforestation.
Conservation Status
Cockatiel
Harpy Eagle
How to Tell Them Apart
Cockatiel
Wild-type males are grey with white wing patches, a yellow face, and bright orange cheek patches. Females are duller with barred tail undersides. Many captive color mutations exist.
Short, curved, grey bill
Harpy Eagle
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
Cockatiel
The cockatiel is the smallest member of the cockatoo family and one of the most popular pet birds globally. These gentle, intelligent parrots can learn to whistle tunes and mimic sounds. Wild cockatiels are nomadic, traveling in flocks following food and water availability across the Australian outback.
Harpy Eagle
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.