I had the noisy rodent issue in the roof and identified it as Pine Marten
Tried most things and then the old lady of the hamlet told me that Pone Martens are repulsed by the smell of camphor and they used to use moth balls as a deterrent in years past.
I could not source camphor or camphor-based moth balls locally so I bought the from the UK.
I placed 1 at each likely entry point and 2 in the small roof space and honestly, the Pine Martens were gone in 24 hours and haven’t returned since.
I then tried these at home in the UK and Grey Squirrels also do not like camphor , I am wondering about Loire
We have had a lot of noisy Loir in our house, adorable creatures with their big bushy tails. Using humane traps dh caught more than 40 a couple of years ago. He drops them near a forest about a kilometer away. After much experimenting he says chunks of apple or peach work the best. They’re back this year, 6 so far. Apple is the current favorite.