American Bald Eagle vs Purple-backed Thornbill

Haliaeetus leucocephalus compared with Ramphomicron microrhynchum

Key Differences

• American Bald Eagle is Not Evaluated while Purple-backed Thornbill is Least Concern.

Taxonomic Classification

Rank	American Bald Eagle	Purple-backed Thornbill
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class same	Aves (นก)	Aves (นก)
Order	Accipitriformes (อันดับเหยี่ยว)	Apodiformes (Apodiformes)
Family	Accipitridae (Hawks & Eagles)	Trochilidae
Genus	Haliaeetus (Sea Eagles)	Ramphomicron
Species	Haliaeetus leucocephalus	Ramphomicron microrhynchum

Evolutionary Relationship

American Bald Eagle and Purple-backed Thornbill share a common ancestor at the Class level: Aves. (นก)

Conservation Status

American Bald Eagle

NE — Not Evaluated

Population: ~316.7K

Trend: Increasing ↑

Purple-backed Thornbill

LC — Least Concern

Physical Characteristics

Attribute	American Bald Eagle	Purple-backed Thornbill
Diet	Carnivore	—
Average Lifespan	28 years	—
Average Length	90 cm	—
Average Weight	5.0 kg	—

Habitat & Geographic Range

American Bald Eagle

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and flooded grasslands and savannas, among 10 distinct biome types spanning the Neotropic and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Europe (8 countries), North America (United States), and South America (Ecuador).

Purple-backed Thornbill

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

American Bald Eagle

The national bird of the United States and a symbol of American conservation success, bald eagles have a wingspan of up to 2.4 meters and inhabit forests and wetlands near open water across North America. Powerful aerial predators and scavengers, they specialize in fish but also take waterfowl and carrion. Nearly extinct by the 1960s due to DDT poisoning and hunting, the bald eagle recovered dramatically following pesticide bans and the Endangered Species Act.

Purple-backed Thornbill

A tiny, jewel-like high-Andean hummingbird, male purple-backed thornbills display glittering violet-purple back and rump feathers with a distinctively short bill adapted for short-tubed flowers. Found in open páramo grasslands and cloud forest edges at elevations of 2,500–4,500 meters in Venezuela, Colombia, Ecuador, and Peru. Despite their small size, they are aggressive territory defenders at flower patches. Their tiny size and high-altitude specialization make them one of the most cold-adapted hummingbirds.

Shared Countries

Both species can be found in 2 countries:

🇪🇨 Ecuador 🇳🇴 Norway