Gray-bellied Night Monkey vs Opal-crowned Tanager

Aotus lemurinus compared with Tangara callophrys

Key Differences

• Gray-bellied Night Monkey is Vulnerable while Opal-crowned Tanager is Least Concern.

Taxonomic Classification

Rank	Gray-bellied Night Monkey	Opal-crowned Tanager
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Primates (Primates)	Passeriformes (Songbirds)
Family	Aotidae	Thraupidae
Genus	Aotus	Tangara
Species	Aotus lemurinus	Tangara callophrys

Evolutionary Relationship

Gray-bellied Night Monkey and Opal-crowned Tanager share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Gray-bellied Night Monkey

VU — Vulnerable

Opal-crowned Tanager

LC — Least Concern

Physical Characteristics

Attribute	Gray-bellied Night Monkey	Opal-crowned Tanager
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.

Opal-crowned Tanager

Habitat

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

Range

Distributed across Colombia, Ecuador, and Norway.

Shared Countries

Both species can be found in 2 countries:

🇨🇴 Colombia 🇪🇨 Ecuador