Brown Thornbill vs Scarlet Macaw

Acanthiza pusilla compared with Ara macao

Taxonomic Classification

Rank	Brown Thornbill	Scarlet Macaw
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class same	Aves (นก)	Aves (นก)
Order	Passeriformes (นกเกาะคอน)	Psittaciformes (อันดับนกแก้ว)
Family	Acanthizidae	Psittacidae (True Parrots)
Genus	Acanthiza	Ara (Macaws)
Species	Acanthiza pusilla	Ara macao

Evolutionary Relationship

Brown Thornbill and Scarlet Macaw share a common ancestor at the Class level: Aves. (นก)

ดู: Class: Aves

Conservation Status

Brown Thornbill

LC — Least Concern

Scarlet Macaw

LC — Least Concern

Population: ~50.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Brown Thornbill	Scarlet Macaw
Diet	—	Herbivore
Average Lifespan	—	50 years
Average Length	—	85 cm
Average Weight	—	1.0 kg

Habitat & Geographic Range

Brown Thornbill

Habitat

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

Range

Found in Norway.

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 Thornbill

The Brown Thornbill (Acanthiza pusilla) is a species in the genus Acanthiza. It is currently classified as Least Concern on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

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.