Eurasian Eagle-Owl vs Grayish Eagle-Owl

Bubo bubo compared with Bubo cinerascens

Key Differences

Eurasian Eagle-Owl is Endangered while Grayish Eagle-Owl is Least Concern.

Taxonomic Classification

Rank	Eurasian Eagle-Owl	Grayish Eagle-Owl
Kingdom same	Animalia (hayvan)	Animalia (hayvan)
Phylum same	Chordata (Kordalılar)	Chordata (Kordalılar)
Class same	Aves (kuş)	Aves (kuş)
Order same	Strigiformes (Baykuş)	Strigiformes (Baykuş)
Family same	Strigidae (True Owls)	Strigidae (True Owls)
Genus same	Bubo (Eagle Owls)	Bubo (Eagle Owls)
Species	Bubo bubo	Bubo cinerascens

Evolutionary Relationship

Eurasian Eagle-Owl and Grayish Eagle-Owl share a common ancestor at the Genus level: Bubo. (Eagle Owls)

Göster Genus: Bubo

Conservation Status

Eurasian Eagle-Owl

EN — Endangered

Population: ~400.0K

Trend: Stable →

Grayish Eagle-Owl

LC — Least Concern

Physical Characteristics

Attribute	Eurasian Eagle-Owl	Grayish Eagle-Owl
Diet	Carnivore	—
Average Lifespan	20 years	—
Average Length	70 cm	—
Average Weight	3.0 kg	—

Habitat & Geographic Range

Eurasian Eagle-Owl

Habitat

Found across multiple habitat types including tropical and subtropical dry broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 4 distinct biome types within the Neotropic biogeographic realm.

Range

Found across Europe (9 countries) and South America (Ecuador). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Grayish Eagle-Owl

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found in Norway.

Eurasian Eagle-Owl

The world's largest owl species by height and weight, Eurasian eagle-owls have wingspans up to 1.9 meters and inhabit rocky landscapes, forest edges, and cliffs from Europe across Asia to China. Silent nocturnal hunters with powerful talons, they prey on rabbits, hares, foxes, and even other raptors. Their deep, resonant hooting carries over great distances. Relatively stable in population, though persecuted historically.