Horned Grebe vs Niceforo Maria’s Oldfield Mouse

Podiceps auritus compared with Thomasomys nicefori

Key Differences

• Horned Grebe is Vulnerable while Niceforo Maria’s Oldfield Mouse is Least Concern.

Taxonomic Classification

Rank	Horned Grebe	Niceforo Maria’s Oldfield Mouse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Podicipediformes (Podicipediformes)	Rodentia (Rodents)
Family	Podicipedidae	Cricetidae
Genus	Podiceps	Thomasomys
Species	Podiceps auritus	Thomasomys nicefori

Evolutionary Relationship

Horned Grebe and Niceforo Maria’s Oldfield Mouse share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Horned Grebe

VU — Vulnerable

Niceforo Maria’s Oldfield Mouse

LC — Least Concern

Physical Characteristics

Attribute	Horned Grebe	Niceforo Maria’s Oldfield Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Horned Grebe

Habitat

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

Range

Found across Europe (6 countries) and North America (United States). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Niceforo Maria’s Oldfield Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

Horned Grebe

Horned Grebe (Podiceps auritus) is classified as Vulnerable (VU) on the IUCN Red List. Facing a high risk of endangerment in the wild, with declining populations and increasing habitat pressure.