* Their nests (dreys): These are cozy, spherical nests built high in trees, often from twigs and leaves. They'll huddle together for warmth and protection from the elements.
* Tree cavities: They might seek shelter in natural cavities in trees, providing them with some insulation and protection.
* Hollow logs: Similar to tree cavities, hollow logs can offer a warm and dry spot to escape the rain.
* Underneath dense foliage: The dense canopy of trees can provide some protection from the rain, and squirrels may find shelter under thick branches or leaves.
It's important to note that grey squirrels are active year-round and will brave the cold and rain to find food. However, they'll prioritize finding shelter during the worst of the weather.