Gray-bellied Night Monkey vs Rufous-tailed Hummingbird

Aotus lemurinus compared with Amazilia tzacatl

Key Differences

• Gray-bellied Night Monkey is Vulnerable while Rufous-tailed Hummingbird is Least Concern.

Taxonomic Classification

Rank	Gray-bellied Night Monkey	Rufous-tailed Hummingbird
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Primates (Primates)	Apodiformes (Apodiformes)
Family	Aotidae	Trochilidae
Genus	Aotus	Amazilia
Species	Aotus lemurinus	Amazilia tzacatl

Evolutionary Relationship

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

Conservation Status

Gray-bellied Night Monkey

VU — Vulnerable

Rufous-tailed Hummingbird

LC — Least Concern

Physical Characteristics

Attribute	Gray-bellied Night Monkey	Rufous-tailed Hummingbird
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.

Rufous-tailed Hummingbird

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Rufous-tailed Hummingbird

One of the most common hummingbirds in Central America and northwestern South America, rufous-tailed hummingbirds are medium-sized with green upper parts and a diagnostic bright rufous-orange tail. Found from Mexico to Ecuador and Trinidad in a wide range of habitats including forest edges, gardens, plantations, and secondary growth from sea level to 2,100 meters. Aggressive territory defenders at feeders and flowering plants, they are frequently seen in gardens across their range. Listed as Least Concern.

Shared Countries

Both species can be found in 3 countries:

🇨🇴 Colombia 🇪🇨 Ecuador 🇻🇪 Venezuela