Flussseeschwalbe vs Braunschwanzamazilie

Sterna hirundo compared with Amazilia tzacatl

Key Differences

• Flussseeschwalbe is Endangered while Braunschwanzamazilie is Least Concern.

Taxonomic Classification

Rank	Flussseeschwalbe	Braunschwanzamazilie
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class same	Aves (Vögel)	Aves (Vögel)
Order	Charadriiformes (Regenpfeiferartige)	Apodiformes (Seglervögel)
Family	Laridae	Trochilidae
Genus	Sterna	Amazilia
Species	Sterna hirundo	Amazilia tzacatl

Evolutionary Relationship

Flussseeschwalbe and Braunschwanzamazilie share a common ancestor at the Class level: Aves. (Vögel)

Conservation Status

Flussseeschwalbe

EN — Endangered

Braunschwanzamazilie

LC — Least Concern

Physical Characteristics

Attribute	Flussseeschwalbe	Braunschwanzamazilie
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Flussseeschwalbe

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.

Braunschwanzamazilie

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Flussseeschwalbe

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.

Braunschwanzamazilie

One of the most common hummingbirds in Central America and northwestern South America, rufous-tailed hummingbirds are medium-sized with green upper parts and a diagnostic bright rufous-orange tail. Found from Mexico to Ecuador and Trinidad in a wide range of habitats including forest edges, gardens, plantations, and secondary growth from sea level to 2,100 meters. Aggressive territory defenders at feeders and flowering plants, they are frequently seen in gardens across their range. Listed as Least Concern.

Shared Countries

Both species can be found in 4 countries:

🇨🇴 Colombia 🇪🇨 Ecuador 🇳🇴 Norway 🇻🇪 Venezuela