Harmless Serotine vs Ruby-Crowned Kinglet

Eptesicus innoxius compared with Regulus calendula

Key Differences

• Harmless Serotine is Near Threatened while Ruby-Crowned Kinglet is Least Concern.

Taxonomic Classification

Rank	Harmless Serotine	Ruby-Crowned Kinglet
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Chiroptera (Bats)	Passeriformes (Songbirds)
Family	Vespertilionidae	Regulidae
Genus	Eptesicus	Regulus
Species	Eptesicus innoxius	Regulus calendula

Evolutionary Relationship

Harmless Serotine and Ruby-Crowned Kinglet share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Harmless Serotine

NT — Near Threatened

Ruby-Crowned Kinglet

LC — Least Concern

Physical Characteristics

Attribute	Harmless Serotine	Ruby-Crowned Kinglet
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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.

Ruby-Crowned Kinglet

Habitat

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

Range

Distributed across Norway and United States.