Gray Jay vs Harmless Serotine

Perisoreus canadensis compared with Eptesicus innoxius

Key Differences

• Gray Jay is Least Concern while Harmless Serotine is Near Threatened.

Taxonomic Classification

Rank	Gray Jay	Harmless Serotine
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Passeriformes (Songbirds)	Chiroptera (Bats)
Family	Corvidae (Crows & Ravens)	Vespertilionidae
Genus	Perisoreus	Eptesicus
Species	Perisoreus canadensis	Eptesicus innoxius

Evolutionary Relationship

Gray Jay and Harmless Serotine share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Gray Jay

LC — Least Concern

Harmless Serotine

NT — Near Threatened

Physical Characteristics

Attribute	Gray Jay	Harmless Serotine
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Gray Jay

Habitat

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

Range

Distributed across Norway and United States.

Harmless Serotine

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.