What is a common sign of squirrel activity in an attic?

Squirrels are known for their distinctive behaviors that can often be heard when they invade spaces such as attics. One of the most notable signs of squirrel activity is the scratching or gnawing sounds they make as they move around or create nests. Squirrels are equipped with sharp teeth that they constantly need to gnaw on objects to keep them trimmed. This behavior not only includes chewing on wooden beams, insulation, or electrical wires in attics but also contributes to the noise that homeowners may hear.

The sounds can be particularly pronounced during early morning or late evening when squirrels are most active. Recognizing these sounds is important as it not only indicates their presence but also the potential for damage to homes due to their nesting and gnawing habits. Other options may relate to wildlife activity in different contexts but do not specifically point to the behavior of squirrels as clearly as the sounds they make.