“Squirrel in wall sound” refers to various noises made by squirrels within the walls of a structure, indicating their presence and activities. These noises, including scratching, gnawing, scampering, and vocalizations, can originate from squirrels seeking shelter, nesting, or food sources. The distinct sounds made by squirrels, as well as the transmission of these sounds through different wall materials, can help identify the cause of the noises. Proper precautions should be taken when addressing squirrel noises in walls, and measures such as prevention, exclusion, humane trapping, and deterrents can be employed to resolve these issues effectively.