Scarlet Macaw vs Stoat, Ermine

Ara macao compared with Mustela erminea

Key Differences

• Scarlet Macaw is Least Concern while Stoat, Ermine is Vulnerable.

Taxonomic Classification

Rank	Scarlet Macaw	Stoat, Ermine
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Psittaciformes (Parrots)	Carnivora (Carnivorans)
Family	Psittacidae (True Parrots)	Mustelidae (Weasels & Otters)
Genus	Ara (Macaws)	Mustela
Species	Ara macao	Mustela erminea

Evolutionary Relationship

Scarlet Macaw and Stoat, Ermine share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Scarlet Macaw

LC — Least Concern

Population: ~50.0K

Trend: Decreasing ↓

Stoat, Ermine

VU — Vulnerable

Physical Characteristics

Attribute	Scarlet Macaw	Stoat, Ermine
Diet	Herbivore	—
Average Lifespan	50 years	—
Average Length	85 cm	—
Average Weight	1.0 kg	—

Habitat & Geographic Range

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.

Stoat, Ermine

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and temperate broadleaf and mixed forests, among 6 distinct biome types spanning the Australasia and Indomalayan and Oceanian realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Indonesia), Europe (6 countries), North America (United States), and Oceania and the Pacific (New Zealand). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

Stoat, Ermine

Stoat, Ermine (Mustela erminea) is classified as Vulnerable (VU) on the IUCN Red List. Facing a high risk of endangerment in the wild, with declining populations and increasing habitat pressure.

Shared Countries

Both species can be found in 2 countries:

🇧🇪 Belgium 🇳🇴 Norway