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yes i didi take them out of hibernation early but i put them in about October 23 so they have been in hibernation for at least 4 months so that is plenty.
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One thing that's important to remember is that there are multiple additional factors that would prompt the animals to naturally enter or cease brumation or to begin copulation...
On the surface it appears very simple, they brumate, they wake up, they breed... But the natural causes of the brumation and the natural triggers to come out of that brumation may not always be present when artificially induced.
I'm going to assume that you varied the temperature... You will want to list what it started at prior to their brumation, during the brumation as a curve and leading up to the change so that some of the colubrid guys can get a better idea of what you did.
I'm also going to assume the feeding schedules were changed, you will want to detail that as finely as possible for the same reasons as above.
Have you changed the light cycle?
Have you changed the humidity?
Have you considered that barometric pressure has been shown to play a much larger role in reptile propogation than was understood to be the case a few decades back and the animals in question may be unable/unwilling to copulate and, short of placing them in a pressure controlled environment, there may be nothing you can do about it?
There's a reason that it is easiest to try to get animals to breed during the seasonal equivalents of their "mating season"... breeding in most ectotherms is a cyclical activity, trying to force it too early or too late is possible of course, but the further off the natural patterns and conditions you go, the harder it becomes.