Hi doggie boy, Happy New Year,
As I say I am forever putting a spanner in the works and challenging folk.
I used to have pet Grey Squirrel which I reared from very young.
That is why my mind went directly to squirrel droppings. We get Woodmice in our house all of the time these days.-Very few House Mice of late- Yours must be eating something different to ours if their droppings look like that. Unlike you. I never take the trouble to measure the but they are of much smaller bore than these.They are also of different proprtions.
Dave