What smell are squirrels afraid of

Any unnatural smell will arouse the vigilance of squirrels, such as the smell of perfume, the smell of burning leaves, and the smell of car exhaust. Squirrels are very timid and are afraid of almost everything. Compared to smells, they are more afraid of unfamiliar sounds. All small sounds can arouse their fear. Squirrels will be particularly careful about physical objects that have nothing to do with food.