Black Howler Monkey vs Red-vented Bulbul

Alouatta pigra compared with Pycnonotus cafer

Key Differences

• Black Howler Monkey is Endangered while Red-vented Bulbul is Least Concern.

Taxonomic Classification

Rank	Black Howler Monkey	Red-vented Bulbul
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Primates (Primates)	Passeriformes (Songbirds)
Family	Atelidae	Pycnonotidae
Genus	Alouatta	Pycnonotus
Species	Alouatta pigra	Pycnonotus cafer

Evolutionary Relationship

Black Howler Monkey and Red-vented Bulbul share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Black Howler Monkey

EN — Endangered

Red-vented Bulbul

LC — Least Concern

Physical Characteristics

Attribute	Black Howler Monkey	Red-vented Bulbul
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black Howler Monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Red-vented Bulbul

Habitat

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

Range

Widely distributed across Asia (6 countries), Europe (8 countries), North America (Mexico, United States), and Oceania and the Pacific (5 countries).

Black Howler Monkey

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

Red-vented Bulbul

Red-vented Bulbul (Pycnonotus cafer) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.