Hi. I have just found a slow-worm swimming and/or floating in my slimline water butt which has a tight-fitting lid. After I hauled it out, it slid away to shelter in a small patch of long grass.
It was definitely a slow-worm (golden sub-adult with black stripe along its back) not a snake.
There are two points of entry into the water butt. The first is through the tap at the bottom, but because this is normally shut I don't think that's how it got in. The second entrance is through the downpipe which descends from the garage roof and goes through the butt lid. Behind and above the butt there is a dense growth of ivy so the little fellow could have climbed to the roof then followed the guttering to the downpipe and thus into the butt itself.
My question is: how long could a slow-worm survive in such a place, with sheer walls, nowhere to rest and little to eat? Does anyone know?
Sorry, being short of time during the 'rescue' I did not take any snaps.