Hoping for some poo identification assistance...
We found a lot of these droppings on our patio. Some are well formed like in the picture, others are runny. They look like whatever deposited them had been munching on berries as they all have a blue/purple tinge.
I don't think rat as they aren't tapered at the end. We do get the odd grey squirrel coming through. They are spread out far an wide which makes me wonder if it was actually a bird.