Where are Norway rats (*Rattus norvegicus*) most commonly found establishing their territory?

Answer

At ground level, including burrows, basements, and sewer systems

The Norway rat is strongly associated with the ground. They favor subterranean locations like burrows dug into soil or the vast network provided by municipal sewer systems.

Where are Norway rats (*Rattus norvegicus*) most commonly found establishing their territory?
Geographyhabitatanimaldistributionrodent