Brown Rat vs spot-billed duck

Rattus norvegicus compared with Anas poecilorhyncha

Key Differences

• Brown Rat is Least Concern while spot-billed duck is Not Evaluated.

Taxonomic Classification

Rank	Brown Rat	spot-billed duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Rodentia (Rodents)	Anseriformes (Anseriformes)
Family	Muridae (Mice & Rats)	Anatidae
Genus	Rattus	Anas
Species	Rattus norvegicus	Anas poecilorhyncha

Evolutionary Relationship

Brown Rat and spot-billed duck share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Brown Rat

LC — Least Concern

spot-billed duck

NE — Not Evaluated

Physical Characteristics

Attribute	Brown Rat	spot-billed duck
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).

spot-billed duck

Habitat

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

Range

Distributed across Belgium, Chile, Denmark, Germany, and United Kingdom.

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 5 countries:

🇧🇪 Belgium 🇨🇱 Chile 🇩🇰 Denmark 🇩🇪 Germany 🇬🇧 United Kingdom