Brook-Side Alder vs 普通燕鷗

Alnus serrulata compared with Sterna hirundo

Key Differences

• Brook-Side Alder is Least Concern while 普通燕鷗 is Endangered.

Taxonomic Classification

Rank	Brook-Side Alder	普通燕鷗
Kingdom	Plantae (植物)	Animalia (动物界)
Phylum	Magnoliophyta (木兰植物门)	Chordata (脊索动物门)
Class	Magnoliopsida (木兰纲)	Aves (鳥綱)
Order	Fagales (壳斗目)	Charadriiformes (鸻形目)
Family	Betulaceae	Laridae
Genus	Alnus	Sterna
Species	Alnus serrulata	Sterna hirundo

Conservation Status

Brook-Side Alder

LC — Least Concern

普通燕鷗

EN — Endangered

Physical Characteristics

Attribute	Brook-Side Alder	普通燕鷗
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brook-Side Alder

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Distributed across Canada and United States.

普通燕鷗

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.

Brook-Side Alder

The Brook-Side Alder (Alnus serrulata) is a species in the genus Alnus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

普通燕鷗

普通燕鸥（Sterna hirundo）在IUCN红色名录中被列为濒危（EN）。在野外面临较高的灭绝风险，种群数量显著下降，生存威胁持续存在。

Shared Countries

Both species can be found in 1 countries:

🇺🇸 United States