Great Grey Owl vs Tawny Owl

Strix nebulosa compared with Strix aluco

Key Differences

• Great Grey Owl is Vulnerable while Tawny Owl is Least Concern.

Taxonomic Classification

Rank	Great Grey Owl	Tawny Owl
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class same	Aves (นก)	Aves (นก)
Order same	Strigiformes (นกเค้าแมว)	Strigiformes (นกเค้าแมว)
Family same	Strigidae (True Owls)	Strigidae (True Owls)
Genus same	Strix	Strix
Species	Strix nebulosa	Strix aluco

Evolutionary Relationship

Great Grey Owl and Tawny Owl share a common ancestor at the Genus level: Strix.

Conservation Status

Great Grey Owl

VU — Vulnerable

Tawny Owl

LC — Least Concern

Physical Characteristics

Attribute	Great Grey Owl	Tawny Owl
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Great Grey Owl

Habitat

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

Range

Found across Europe (6 countries) and North America (United States). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Tawny Owl

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Great Grey Owl

Great Grey Owl (Strix nebulosa) is classified as Vulnerable (VU) on the IUCN Red List. Facing a high risk of endangerment in the wild, with declining populations and increasing habitat pressure.

Tawny Owl

Tawny Owl (Strix aluco) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden