Black Howler Monkey vs Buff-necked Ibis

Alouatta pigra compared with Theristicus caudatus

Key Differences

• Black Howler Monkey is Endangered while Buff-necked Ibis is Least Concern.

Taxonomic Classification

Rank	Black Howler Monkey	Buff-necked Ibis
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Primates (Primates)	Pelecaniformes (Pelecaniformes)
Family	Atelidae	Threskiornithidae
Genus	Alouatta	Theristicus
Species	Alouatta pigra	Theristicus caudatus

Evolutionary Relationship

Black Howler Monkey and Buff-necked Ibis share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Black Howler Monkey

EN — Endangered

Buff-necked Ibis

LC — Least Concern

Physical Characteristics

Attribute	Black Howler Monkey	Buff-necked Ibis
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black Howler Monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Buff-necked Ibis

Habitat

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

Range

Found across Europe (5 countries) and South America (Colombia, Venezuela).

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.

Buff-necked Ibis

Buff-necked Ibis (Theristicus caudatus) 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.