brown howler monkey vs Scarlet Macaw

Alouatta guariba compared with Ara macao

Key Differences

• brown howler monkey is Vulnerable while Scarlet Macaw is Least Concern.

Taxonomic Classification

Rank	brown howler monkey	Scarlet Macaw
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Primates (Primates)	Psittaciformes (Parrots)
Family	Atelidae	Psittacidae (True Parrots)
Genus	Alouatta	Ara (Macaws)
Species	Alouatta guariba	Ara macao

Evolutionary Relationship

brown howler monkey and Scarlet Macaw share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

brown howler monkey

VU — Vulnerable

Scarlet Macaw

LC — Least Concern

Population: ~50.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	brown howler monkey	Scarlet Macaw
Diet	—	Herbivore
Average Lifespan	—	50 years
Average Length	—	85 cm
Average Weight	—	1.0 kg

Habitat & Geographic Range

brown howler monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Scarlet Macaw

Habitat

Typically found in grasslands, forests, and vegetated habitats.

Range

Found across Europe (5 countries) and South America (Colombia, Ecuador, Venezuela). Population trends indicate a declining trajectory in parts of its range.

brown howler monkey

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

Scarlet Macaw

One of the most brilliantly colored birds in the Americas, scarlet macaws display vivid red, yellow, and blue plumage with wingspans reaching 1 meter. Found in humid lowland forests from Mexico to Bolivia, they are highly intelligent, long-lived — up to 75 years — and form lifelong pair bonds. They travel long distances to clay licks where they consume mineral-rich soil to detoxify seeds. Listed as Least Concern but locally threatened by habitat loss and the pet trade.