Common Grasshopper-Warbler vs Merriam’s Pocket Mouse

Locustella naevia compared with Perognathus merriami

Taxonomic Classification

Rank	Common Grasshopper-Warbler	Merriam’s Pocket Mouse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Passeriformes (Songbirds)	Rodentia (Rodents)
Family	Locustellidae	Heteromyidae
Genus	Locustella	Perognathus
Species	Locustella naevia	Perognathus merriami

Evolutionary Relationship

Common Grasshopper-Warbler and Merriam’s Pocket Mouse share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Common Grasshopper-Warbler

LC — Least Concern

Merriam’s Pocket Mouse

LC — Least Concern

Physical Characteristics

Attribute	Common Grasshopper-Warbler	Merriam’s Pocket Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common Grasshopper-Warbler

Habitat

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

Range

Distributed across Belgium, Denmark, Luxembourg, Norway, and Sweden.

Merriam’s Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Common Grasshopper-Warbler

Common Grasshopper-Warbler (Locustella naevia) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.