Squirrel are very opportunistic and can build their nests on trees in tree cracks and attics. When they build nests in attics they destroy insulation and attilc space as a toilet. Read this article to learn about squirrel droppings and how to clean after squirrel invasion. Hire a professional wildlife removal service if you suspect you may have wildlife nesting in your home. An expert will be able to positively identify the type of pest from its species and take the appropriate measures to remove the animal safely and humanely.
Infographic Source: https://www.squirrelcontrol.ca/blog/are-squirrel-droppings-dangerous/