American Beaver
A broad-tailed rodent that fells trees, stores branches, builds dams, and creates habitat used by entire freshwater communities.
Artwork inspired by Henk Pander
American beavers cut woody plants for food and construction, building lodges or bank dens with underwater entrances. Dams slow water, trap sediment, expand wetland habitat, and can reduce or intensify local flooding depending on context.
Often the first evidence is not the animal but a sharply gnawed stump, peeled branch, muddy slide, lodge, or sudden tail slap warning family members underwater. Do not dismantle dams without land-management guidance. Year-round; easiest to watch during calm evenings in spring through fall.
- Role
- Ecosystem engineer
- Tail
- Flat and scaly
- Diet
- Bark + aquatic plants
Quick guide
- Best time
- Quiet dusk
- Sign
- Chisel-cut woody stems
Observe American Beaver on its terms
- Shape and movement
- Begin with flat paddle tail when identifying American Beaver.
- Second sign
- Look for orange incisors together with chisel-cut woody stems before accepting the identification.
- Habitat agreement
- Freshwater across North America; year-round.
- Read sign before animals
- Look for chisel-cut stems, slides, lodges, dams, or a warning tail slap from shore.
Good to know
Fresh chips, peeled stems, slides, and a sudden tail slap often reveal beavers before the animals appear. Watch quietly from shore and leave dams or lodges intact unless a land manager directs work.
Notice these
- Flat paddle tail
- Orange incisors
- Webbed hind feet
- Waterproof brown coat