Blakiston's Fish Owl vs Eurasian Eagle-Owl

Bubo blakistoni compared with Bubo bubo

Taxonomic Classification

Rank	Blakiston's Fish Owl	Eurasian Eagle-Owl
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (Birds)	Aves (Birds)
Order same	Strigiformes (Owls)	Strigiformes (Owls)
Family same	Strigidae (True Owls)	Strigidae (True Owls)
Genus same	Bubo (Eagle Owls)	Bubo (Eagle Owls)
Species	Bubo blakistoni	Bubo bubo

Evolutionary Relationship

Blakiston's Fish Owl and Eurasian Eagle-Owl share a common ancestor at the Genus level: Bubo. (Eagle Owls)

Conservation Status

Blakiston's Fish Owl

EN — Endangered

Eurasian Eagle-Owl

EN — Endangered

Population: ~400.0K

Trend: Stable →

Physical Characteristics

Attribute	Blakiston's Fish Owl	Eurasian Eagle-Owl
Diet	—	Carnivore
Average Lifespan	—	20 years
Average Length	—	70 cm
Average Weight	—	3.0 kg

Habitat & Geographic Range

Blakiston's Fish Owl

Habitat

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

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.

Blakiston's Fish Owl

The Blakiston's Fish Owl (Bubo blakistoni) is a species in the genus Bubo. It is currently classified as Endangered on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

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.