Corn Crake vs Delicate Pygmy Rice Rat

Crex crex compared with Oligoryzomys delicatus

Key Differences

• Corn Crake is Critically Endangered while Delicate Pygmy Rice Rat is Data Deficient.

Taxonomic Classification

Rank	Corn Crake	Delicate Pygmy Rice 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	Cricetidae
Genus	Crex	Oligoryzomys
Species	Crex crex	Oligoryzomys delicatus

Evolutionary Relationship

Corn Crake and Delicate Pygmy Rice Rat share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Corn Crake

CR — Critically Endangered

Delicate Pygmy Rice Rat

DD — Data Deficient

Physical Characteristics

Attribute	Corn Crake	Delicate Pygmy Rice 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.

Delicate Pygmy Rice Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Ecuador.

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.