[Ozric Jonathan]

Hi there and welcome to the forum. Do you know what species the tortoise is?

Some birds can be a threat but some keepers say not to a larger tortoise. Magpies will come right down and are very cheeky and they are a threat to my tortoises. What birds do you get in the actual garden as opposed to the area?

Tortoises need help to do well in the UK. Even if it was safe from predators, a garden without a greenhouse or coldframe or shed with heating is not suitable in the long term.

So I suggest you need a coldframe / greenhouse with a basking lamp as a bare minimum. But let's see what others say.