Closeup gray squirrel runs away on foor with pebbles and dead leaves, autumn

sciurus carolinensis gray squirrel eastern gray squirrel sciurus sciuridae squirrel hairy tail urban wildlife rodentia wildlife rodents rodent invasive species gray fur scatterhoarder fur invasive scavenge species dead leaves closeup scatter synanthropes pests arboreal sneaky inspect collecting bushytailed gathering sunny day hoarder habitat autumn forest park woods urban leaves