The most common sign of a raw turkey that has gone bad is a foul smelling odor that will be very noticeable.
Other signs that a raw turkey are bad is discolored flesh and a slimy feeling to the skin of the turkey.
The raw turkey will last a few days in the refrigerator but any longer than a few days you need to freeze the turkey to keep bacteria from growing on the turkey.
Smell the turkey before you cook if you've kept it for a few days in the refrigerator to be sure it's good and check for the slimy feeling.
If it's bad then you'll need to throw it out because it can make you sick.