Bobr Kanadskii vs Речная крачка

Castor canadensis compared with Sterna hirundo

Key Differences

• Bobr Kanadskii is Not Evaluated while Речная крачка is Endangered.

Taxonomic Classification

Rank	Bobr Kanadskii	Речная крачка
Kingdom same	Animalia (животные)	Animalia (животные)
Phylum same	Chordata (хордовые)	Chordata (хордовые)
Class	Mammalia (млекопитающие)	Aves (птицы)
Order	Rodentia (грызуны)	Charadriiformes (ржанкообразные)
Family	Castoridae (Beavers)	Laridae
Genus	Castor (Beavers)	Sterna
Species	Castor canadensis	Sterna hirundo

Evolutionary Relationship

Bobr Kanadskii and Речная крачка share a common ancestor at the Phylum level: Chordata. (хордовые)

Conservation Status

Bobr Kanadskii

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Речная крачка

EN — Endangered

Physical Characteristics

Attribute	Bobr Kanadskii	Речная крачка
Diet	Herbivore	—
Average Lifespan	15 years	—
Average Length	1.0 m	—
Average Weight	25.0 kg	—

Habitat & Geographic Range

Bobr Kanadskii

Habitat

Typically found in grasslands, forests, and vegetated habitats.

Range

Widely distributed across Europe (15 countries), North America (United States), and South America (Argentina, Chile).

Речная крачка

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.

Bobr Kanadskii

The largest rodent in North America, Canadian beavers weigh up to 32 kg and are master ecosystem engineers inhabiting rivers, lakes, and wetlands across Canada and the northern United States. By felling trees and constructing dams up to hundreds of meters long, beavers create ponds that provide habitat for hundreds of species. Their lodges and canals transform entire watersheds. Once nearly hunted to extinction for their fur, beaver populations have recovered strongly.

Речная крачка

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 🇱🇺 Luxembourg 🇳🇴 Norway 🇵🇹 Portugal 🇷🇺 Russia 🇸🇪 Sweden 🇺🇸 United States