
Mmmm is it possible that he is just waiting ato see if you offer him something more tasty?
If you want to warm stuff up, just hold the wings under a hot tap for a while, that will take the chill off them, but not heat up the bones to much.
However, do realise that by switching to a raw diet, its like telling a kid, 'well, i know u ate macdonalds for the first 12 yrs of your life, but now its healthy salads and stuff for ever' wouldnt go down well would it.
If there is no medical reason why he isnt eating, then just let him go hungry for a little while, dont give him ANYTHING until he eats a wing. Its not cos he really doesnt like them cos he has eaten one before, hes just holding out for something better in my opinion!
Em