None though I did work out a plan on how we could begin to repopulate their species.
It depends on how you rule Polymorph work though, just making men polymorphed into CotF impregnate female CotF obviously wont work, seeing as body parts turn back to normal when separated from the body, but polymorphing a woman into a CotF and having her bear a child could work, that depends on whether you rule that only the initial cell that's the egg transform back, or all cells transform back, so the offspring becomes a half-CotF.
Can you tell me if Viserys spell knowledge has anything to say about which of those are the case?
I know Polymorph don't normally last long enough for that, but between persistence spells and recasting, keeping a woman polymorphed for her entire pregnancy should be possible, it would of course be volunteer only, but I'm sure more than a few of the whores in SD would volunteer if the pay was high enough, and saving the CotF is easily worth a 100 IM per child.