Gray-bellied Night Monkey vs Waller's Starling

Aotus lemurinus compared with Onychognathus walleri

Key Differences

• Gray-bellied Night Monkey is Vulnerable while Waller's Starling is Least Concern.

Taxonomic Classification

Rank	Gray-bellied Night Monkey	Waller's Starling
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Primates (Primates)	Passeriformes (Songbirds)
Family	Aotidae	Sturnidae
Genus	Aotus	Onychognathus
Species	Aotus lemurinus	Onychognathus walleri

Evolutionary Relationship

Gray-bellied Night Monkey and Waller's Starling share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Gray-bellied Night Monkey

VU — Vulnerable

Waller's Starling

LC — Least Concern

Physical Characteristics

Attribute	Gray-bellied Night Monkey	Waller's Starling
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Gray-bellied Night Monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Waller's Starling

Habitat

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

Range

Found in Norway.