Habitat piles are great for small animals such as hedgehogs and mice, they can be important spaces for shelter, breeding and overwintering.
They’re easy to make and can be made out of waste materials. They can be all shapes and sizes.
The important considerations is that there are at least two entrances and that there is sufficient space inside.
Every garden should have a habitat pile tucked away somewhere.
This is one that I recently made. It has larger sticks for the walls, straw for bedding, smaller sticks for the roof and twigs for insulation.