There is an opening in the back of the house where i think squirrels.
Squirrels in ceiling at night.
Occasionally when the house is very quiet you will hear them during the day as well.
With rodents you ll usually hear them around bedtime and late at night.
The pitter patter of little feet is a welcome sound in many homes but it becomes much more ominous if it s coming from inside your walls.
Squirrels are most active in the morning at first light and in the evening when they return to the nest after foraging.
You can rule out a squirrel problem if you consistently hear activity through the night.
How to get rid of a mouse or squirrel inside a wall.
In order to get rid of the fleas you ll have to get the squirrels out too just treating for fleas will result in recurrent infestations.
Squirrels are social family oriented creatures.
Squirrels rarely get into walls.
Usually coming from your walls ceiling or attic if you are sitting in an upstairs room.
What you ll hear is a faint scratching sound that s isolated in one area.
A lot depends on location.
Squirrels in the ceiling get them out i wrote this site about squirrels in the attic but many people hear the squirrels in the ceiling.
They generally nest in your attic.