It has been established that nuisance animals leave a strong scent that invites other rodents into the attic. This great scent is caused by the huge amount of urine and droppings deposited in the attic by the nuisance animal. These droppings grow molds with time and have salmonella which is a potential health hazard. These animals may deposit urine and droppings on items that are stored in the attic. This problem can be solved by deodorizing and decontaminating the attic. Lastly, you can enlist the help of a professional who specializes in removing wildlife from homes. This is because removing wildlife can be complex because of laws prohibiting homeowners from trapping and removing animals by themselves.