When you say they look sick and have spots on them, can you describe their appearance a little more? Do they have patches of fur missing? Or skin around the head and neck that looks gray, crusty, and wrinkled? Or do they have scabs or open wounds? What do the spots look like? Or do they simply not move around much? Can you get close enough to see whether their eyes are clear and bright, or do they look watery or crusty? Any chance you can send some photos?