Fulvous Colilargo vs Greater Scaup

Oligoryzomys fulvescens compared with Aythya marila

Key Differences

• Fulvous Colilargo is Least Concern while Greater Scaup is Vulnerable.

Taxonomic Classification

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

Evolutionary Relationship

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

Conservation Status

Fulvous Colilargo

LC — Least Concern

Greater Scaup

VU — Vulnerable

Physical Characteristics

Attribute	Fulvous Colilargo	Greater Scaup
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Fulvous Colilargo

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Venezuela.

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.

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.