Narrow-headed Vole vs Tree Swallow

Microtus gregalis compared with Tachycineta bicolor

Taxonomic Classification

Rank	Narrow-headed Vole	Tree Swallow
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Rodentia (Rodents)	Passeriformes (Songbirds)
Family	Cricetidae	Hirundinidae
Genus	Microtus	Tachycineta
Species	Microtus gregalis	Tachycineta bicolor

Evolutionary Relationship

Narrow-headed Vole and Tree Swallow share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Narrow-headed Vole

LC — Least Concern

Tree Swallow

LC — Least Concern

Physical Characteristics

Attribute	Narrow-headed Vole	Tree Swallow
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Narrow-headed Vole

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Tree Swallow

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, United States, and Venezuela.