Quote Originally Posted by Freakie_frog
Try starting him up rat pups first. Then move to weanling and so on.
Basically, start him on something helpless to build confidence and move up from there.

It may also be that he's not intimidated by them. Alot of times they shy away from food they don't recognize. Pre-scent the rats with whatever you were feeding your BP on before. It worked for all but 1 of mine...