Copperhead Not Eating

[olesatchel]

Hello I have two copperheads they are about a year old. I have fed both of them a ringneck snake. That is the only thing they have eaten. I fed them a week after getting them. Now its about two weeks later and they wont eat. I have tried feeding them worms, meal worms, pinkies, mice and they wont eat. I am trying crickets and horn worms next. Does anyone have any other feeding ideas please?

Thanks,