Gray-bellied Night Monkey vs Lesser Cuckoo

Aotus lemurinus compared with Cuculus poliocephalus

Key Differences

• Gray-bellied Night Monkey is Vulnerable while Lesser Cuckoo is Least Concern.

Taxonomic Classification

Rank	Gray-bellied Night Monkey	Lesser Cuckoo
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Primates (Primates)	Cuculiformes (Cuculiformes)
Family	Aotidae	Cuculidae
Genus	Aotus	Cuculus
Species	Aotus lemurinus	Cuculus poliocephalus

Evolutionary Relationship

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

Conservation Status

Gray-bellied Night Monkey

VU — Vulnerable

Lesser Cuckoo

LC — Least Concern

Physical Characteristics

Attribute	Gray-bellied Night Monkey	Lesser Cuckoo
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.

Lesser Cuckoo

Habitat

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

Range

Distributed across Norway and Taiwan.