You ll hear these pests more at night as they re looking for food although colder temperatures also increases activity.
Scratching at night in attic.
Though bats are typically quiet nocturnal animals they do make high pitched screeching sounds around dusk or dawn.
Both mice and rats make scratching sounds in an attic.
Many of the species that you have in your attic are nocturnal and are more likely to be active at night.
It s probably your water heater where sediment has settled at the bottom of the tank then popped and bubbled as the water heats.
All other potential culprits are smaller and quicker so if you re hearing loud heavy activity as opposed to scratching or scurrying sounds it s a safe bet you have raccoons in your attic.
Squealing sounds of heavy walking from the ceiling.
Hearing high pitched attic noises.
The next best indicator will be the time of day and the season in which you are hearing the activity.
This includes raccoons bats mice rats and flying squirrels.
For the mouse baiting in the attic and the basement should do the trick along with finding and securing the outside opening to ensure more won t find their way in.
It could even be from the heating cooling system or branches of a nearby tree scraping against the roof.
This is especially true if you have a gas or propane heated tank.
A scratching in the attic early in the morning call if likely to be a grey squirrel.
Squirrels need to be trapped so finding their access point is imperative.
Scratching sounds in the attic or walls if you hear scratching or knocking sounds in your walls or attic then this is a pretty good indication that it will be a wild animal in your home.
But most of the time it s an animal and it s pretty easy to tell when the noises are coming from something living.
So scratching sounds in the attic at night could be from a number of different nocturnal animals.
Even if you don t catch a glimpse of the animal you can frequently figure out what it is just based on when it makes noise and what it sounds like.