DESC: Your sense of smell is very keen to the smell of blood, decay and death. This odor travels for miles down wind (or carried by the current in water) attracting your attention if the odor is up wind of you.
If you have a range that you patrol it is only a mater of time before you know about every wounded, dieing and dead creature within a 1 kilometer (0.62 miles or 3,280.83 feet) area. This area can be modified by weather conditions.
Unlike scent you do not suffer any penalties to odour based attacks, you have smelled far worse.