North American porcupine vs Snowy Owl

Erethizon dorsatus compared with Bubo scandiacus

Key Differences

• North American porcupine is Least Concern while Snowy Owl is Critically Endangered.

Taxonomic Classification

Rank	North American porcupine	Snowy Owl
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Rodentia (Rodents)	Strigiformes (Owls)
Family	Erethizontidae	Strigidae (True Owls)
Genus	Erethizon	Bubo (Eagle Owls)
Species	Erethizon dorsatus	Bubo scandiacus

Evolutionary Relationship

North American porcupine and Snowy Owl share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

North American porcupine

LC — Least Concern

Snowy Owl

CR — Critically Endangered

Physical Characteristics

Attribute	North American porcupine	Snowy Owl
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

North American porcupine

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in United States.

Snowy 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

Widely distributed across Europe (4 countries), North America (United States), and South America (Ecuador). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Snowy Owl

Snowy Owl (Bubo scandiacus) is classified as Critically Endangered (CR) on the IUCN Red List. Facing an extremely high risk of extinction in the wild due to severe population decline and habitat loss.

Shared Countries

Both species can be found in 1 countries:

🇺🇸 United States