Greater Scaup vs Large Oecomys

Aythya marila compared with Oecomys superans

Key Differences

• Greater Scaup is Vulnerable while Large Oecomys is Least Concern.

Taxonomic Classification

Rank	Greater Scaup	Large Oecomys
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Anseriformes (Anseriformes)	Rodentia (Rodents)
Family	Anatidae	Cricetidae
Genus	Aythya	Oecomys
Species	Aythya marila	Oecomys superans

Evolutionary Relationship

Greater Scaup and Large Oecomys share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Greater Scaup

VU — Vulnerable

Large Oecomys

LC — Least Concern

Physical Characteristics

Attribute	Greater Scaup	Large Oecomys
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Greater Scaup

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United States. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Large Oecomys

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Ecuador.

Greater Scaup

Greater Scaup (Aythya marila) 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.