Canadian beaver vs Common Grasshopper-Warbler

Castor canadensis compared with Locustella naevia

Key Differences

• Canadian beaver is Not Evaluated while Common Grasshopper-Warbler is Least Concern.

Taxonomic Classification

Rank	Canadian beaver	Common Grasshopper-Warbler
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Rodentia (Rodents)	Passeriformes (Songbirds)
Family	Castoridae (Beavers)	Locustellidae
Genus	Castor (Beavers)	Locustella
Species	Castor canadensis	Locustella naevia

Evolutionary Relationship

Canadian beaver and Common Grasshopper-Warbler share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Common Grasshopper-Warbler

LC — Least Concern

Physical Characteristics

Attribute	Canadian beaver	Common Grasshopper-Warbler
Diet	Herbivore	—
Average Lifespan	15 years	—
Average Length	1.0 m	—
Average Weight	25.0 kg	—

Habitat & Geographic Range

Canadian beaver

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).

Common Grasshopper-Warbler

Habitat

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

Range

Distributed across Belgium, Denmark, Luxembourg, Norway, and Sweden.

Canadian beaver

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.

Common Grasshopper-Warbler

Common Grasshopper-Warbler (Locustella naevia) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇱🇺 Luxembourg 🇳🇴 Norway 🇸🇪 Sweden