Harmless Serotine vs Least Flycatcher

Eptesicus innoxius compared with Empidonax minimus

Key Differences

• Harmless Serotine is Near Threatened while Least Flycatcher is Least Concern.

Taxonomic Classification

Rank	Harmless Serotine	Least Flycatcher
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Chiroptera (Bats)	Passeriformes (Songbirds)
Family	Vespertilionidae	Tyrannidae
Genus	Eptesicus	Empidonax
Species	Eptesicus innoxius	Empidonax minimus

Evolutionary Relationship

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

Conservation Status

Harmless Serotine

NT — Near Threatened

Least Flycatcher

LC — Least Concern

Physical Characteristics

Attribute	Harmless Serotine	Least Flycatcher
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.

Least Flycatcher

Habitat

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

Range

Distributed across Colombia, Norway, and United States.