American Flamingo vs Common Tern

Phoenicopterus ruber compared with Sterna hirundo

Key Differences

• American Flamingo is Least Concern while Common Tern is Endangered.

Taxonomic Classification

Rank	American Flamingo	Common Tern
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (Birds)	Aves (Birds)
Order	Phoenicopteriformes (Flamingos)	Charadriiformes (Charadriiformes)
Family	Phoenicopteridae (Flamingos)	Laridae
Genus	Phoenicopterus (Flamingos)	Sterna
Species	Phoenicopterus ruber	Sterna hirundo

Evolutionary Relationship

American Flamingo and Common Tern share a common ancestor at the Class level: Aves. (Birds)

Conservation Status

American Flamingo

LC — Least Concern

Common Tern

EN — Endangered

Physical Characteristics

Attribute	American Flamingo	Common Tern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

American Flamingo

Habitat

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

Range

Found across Europe (10 countries) and South America (Colombia, Ecuador, Venezuela).

Common Tern

Habitat

Found across multiple habitat types including tropical and subtropical dry broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 9 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 (7 countries), North America (United States), and South America (Colombia, Ecuador, Venezuela). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

American Flamingo

The most vibrantly colored flamingo species, American flamingos display brilliant scarlet-pink plumage from the carotenoid pigments in their crustacean diet. Found in Caribbean coastal lagoons, salt pans, and mangrove swamps from the Bahamas and Florida through Central America and the Galapagos. Highly gregarious, they nest in huge colonies on mudflat mounds. Their distinctive deep pink color is used to signal health and reproductive quality to potential mates.

Common Tern

Common Tern (Sterna hirundo) is classified as Endangered (EN) on the IUCN Red List. At high risk of extinction in the wild, with significant population decline and ongoing threats to survival.

Shared Countries

Both species can be found in 7 countries:

🇧🇪 Belgium 🇨🇴 Colombia 🇩🇰 Denmark 🇪🇨 Ecuador 🇳🇴 Norway 🇸🇪 Sweden 🇻🇪 Venezuela