Ключевые слова: animal, cold, environment, eurasian red squirrel, exploring, fingerprint, foot, footprints, footstep, forest, herbivorous, ice, icy, light, mammal, mark, natural, nature, outdoor, outdoors, pattern, paw, rodent, sciurus vulgaris, season, seasonal nature, shape, single, snow, snow falls, snowfall, surface, texture, trace, track, tracking, tracks, trail, walk, white, white winter, wild, wilderness, wildlife, winter, winter background,