Brown Rat vs Olive-tree Warbler

Rattus norvegicus compared with Hippolais olivetorum

Key Differences

• Brown Rat is Least Concern while Olive-tree Warbler is Not Evaluated.

Taxonomic Classification

Rank	Brown Rat	Olive-tree Warbler
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Rodentia (Rodents)	Passeriformes (Songbirds)
Family	Muridae (Mice & Rats)	Acrocephalidae
Genus	Rattus	Hippolais
Species	Rattus norvegicus	Hippolais olivetorum

Evolutionary Relationship

Brown Rat and Olive-tree Warbler share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Brown Rat

LC — Least Concern

Olive-tree Warbler

NE — Not Evaluated

Physical Characteristics

Attribute	Brown Rat	Olive-tree Warbler
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown Rat

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 10 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (11 countries), Asia (15 countries), Europe (41 countries), North America (16 countries), Oceania and the Pacific (10 countries), and South America (10 countries).

Olive-tree Warbler

Habitat

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

Range

Distributed across Norway, South Sudan, and Sweden.

Brown Rat

Brown Rat (Rattus norvegicus) 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.

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇸🇪 Sweden