Scarlet Macaw vs

Ara macao compared with Usnea cornuta

Key Differences

Scarlet Macaw is Least Concern while is Near Threatened.

Taxonomic Classification

Rank	Scarlet Macaw
Kingdom	Animalia (สัตว์)	Fungi (เห็ดรา)
Phylum	Chordata (สัตว์มีแกนสันหลัง)	Ascomycota (Sac Fungi)
Class	Aves (นก)	Lecanoromycetes (Lecanoromycetes)
Order	Psittaciformes (อันดับนกแก้ว)	Lecanorales (Lecanorales)
Family	Psittacidae (True Parrots)	Parmeliaceae
Genus	Ara (Macaws)	Usnea
Species	Ara macao	Usnea cornuta

Conservation Status

Scarlet Macaw

LC — Least Concern

Population: ~50.0K

Trend: Decreasing ↓

NT — Near Threatened

Physical Characteristics

Attribute	Scarlet Macaw
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.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway, Portugal, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

Usnea cornuta is a fruticose lichen in the family Parmeliaceae, assessed as Near Threatened (NT). It forms shrubby, branching thalli that hang from tree branches and twigs, typically in humid forest environments. Like all Usnea species, it is highly sensitive to air pollution, particularly sulfur dioxide, making it a useful bioindicator of air quality.