Dam.
Dam.
Lodge
The lair of a burrowing animal is often called a den. Other times it may be referred to as a burrow, or a sett as it is with a badger.
I think it is called a lair
The collective nouns area colony of beaversa lodge of beaversa family of beavers.
beavers are rodents
The fox's home may be called a lair,a den or, simply, a burrow.
The animal returned to it's lair at night.
The female beaver is called a "doe." In addition to "doe," female beavers may also be referred to simply as female beavers in a more general context. Beavers are known for their impressive dam-building skills and play a significant role in their ecosystems.
A group of beavers is called a colony .
their home or lair is an 'earth' although according to the encyclopaedia they usually sleep in grasses or thickets, using an earth or lair in the breeding season
A den, a lair, a burrow - it has many names.