If you have not spotted actual points of entry around your house, you might be unaware of the squirrels living in your attic. That is until you start hearing their sounds. Clients often report that they tend to hear squirrels most during the early morning hours when they head out to find sources of food. They make quick, scratching noises that can be heard in the spaces below. This is particularly easy to hear when the attic is considered finished, complete with beams and flooring.