Gray-bellied Night Monkey vs Spot-billed Ground-Tyrant

Aotus lemurinus compared with Muscisaxicola maculirostris

Key Differences

• Gray-bellied Night Monkey is Vulnerable while Spot-billed Ground-Tyrant is Least Concern.

Taxonomic Classification

Rank	Gray-bellied Night Monkey	Spot-billed Ground-Tyrant
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Primates (Primates)	Passeriformes (Songbirds)
Family	Aotidae	Tyrannidae
Genus	Aotus	Muscisaxicola
Species	Aotus lemurinus	Muscisaxicola maculirostris

Evolutionary Relationship

Gray-bellied Night Monkey and Spot-billed Ground-Tyrant share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Gray-bellied Night Monkey

VU — Vulnerable

Spot-billed Ground-Tyrant

LC — Least Concern

Physical Characteristics

Attribute	Gray-bellied Night Monkey	Spot-billed Ground-Tyrant
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.

Spot-billed Ground-Tyrant

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