Amazon Black Howler vs Rusty-headed Spinetail

Alouatta nigerrima compared with Synallaxis fuscorufa

Key Differences

• Amazon Black Howler is Least Concern while Rusty-headed Spinetail is Vulnerable.

Taxonomic Classification

Rank	Amazon Black Howler	Rusty-headed Spinetail
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Primates (Primates)	Passeriformes (Songbirds)
Family	Atelidae	Furnariidae
Genus	Alouatta	Synallaxis
Species	Alouatta nigerrima	Synallaxis fuscorufa

Evolutionary Relationship

Amazon Black Howler and Rusty-headed Spinetail share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Amazon Black Howler

LC — Least Concern

Rusty-headed Spinetail

VU — Vulnerable

Physical Characteristics

Attribute	Amazon Black Howler	Rusty-headed Spinetail
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Amazon Black Howler

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Rusty-headed Spinetail

Habitat

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

Range

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

Amazon Black Howler

The Amazon Black Howler (Alouatta nigerrima) is a species in the genus Alouatta. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.