During the winter they are highly active as they busily seek out nuts and fungi to bury in caches. In pine forests in Scotland, red squirrels spend their days dashing around in the canopy searching for and feeding on pine cones. Although red squirrels forage alone, they roost in communal nests during the winter.
Grey squirrels can thrive on acorns and a wide variety of other foods.
They also survive well in our widespread mixed deciduous woodland, whereas red squirrels prefer more sparsely distributed coniferous woodland.