Corn Crake vs Polynesian rat

Crex crex compared with Rattus exulans

Key Differences

• Corn Crake is Critically Endangered while Polynesian rat is Least Concern.

Taxonomic Classification

Rank	Corn Crake	Polynesian rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Gruiformes (Gruiformes)	Rodentia (Rodents)
Family	Rallidae	Muridae (Mice & Rats)
Genus	Crex	Rattus
Species	Crex crex	Rattus exulans

Evolutionary Relationship

Corn Crake and Polynesian rat share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Corn Crake

CR — Critically Endangered

Polynesian rat

LC — Least Concern

Physical Characteristics

Attribute	Corn Crake	Polynesian rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Corn Crake

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 8 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found across Europe (6 countries). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Polynesian rat

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical coniferous forests, among 4 distinct biome types spanning the Australasia and Indomalayan realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (6 countries), Europe (United Kingdom), North America (United States), Oceania and the Pacific (11 countries), and South America (Chile).

Corn Crake

Corn Crake (Crex crex) is classified as Critically Endangered (CR) on the IUCN Red List. Facing an extremely high risk of extinction in the wild due to severe population decline and habitat loss.