You can see similar piles of cones all over the place, wherever there are conifers. At the FWG, the squirrels are not fussy as to whether they are collecting the cones from norway spruce, scotch pine, or any other conifer we have there. These caches are made in autumn and help the squirrel through the winter, though this diet is supplemented by other wild foods (maple seeds, sumac, goldenrod galls, etc.). Usually, these caches run out long before winter is over, and that is when squirrels really get busy seeking other foods. Each squirrel maintains its own cache(s). Grey squirrels scatter-hoard their food, a different approach.