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Much depends on the surrounding landscape. A spruce forest is a favourite, there is much less snow, even when there is “double thickness” elsewhere. Other good shelters are very dense hazel thickets where hunters can’t get at the herd, even with dogs. The boars simply won’t leave the thicket, they circle around in it and the thick copse protects them: their bodies are wedge-shaped and they have strength and training to press through the densest growths. Large reed banks offer not only food but also carry the boars even with soft, soggy ground, thanks to how their hooves are built.
They try to keep as near as possible to the places with extra feeding. Measurements show that the ground is frozen down to around twenty centimetres, so getting hold of food from nature is very difficult. Sleeping places have to be dug out to the soil level, to keep from freezing. The boars usually sleep side-by-side.