Taybha
Whalewhine
Get a rechargeable headlamp , fenix - type that has a flashing light function cyclists use .
If you have easy access to the loft put the lamp in the loft before bed time and just leave it on the flash mode , for whatever reason squirrel in particular hate it and quickly leave home for a less flashy loft .
A good lamp will flash for 10 hours before a recharge is required.
No animals were harmed in this post .
This actually works