Just to correct what I wrote earlier: It seems the gargoyles aren't completely extinct yet. Four females are still alive, but two of them are already very old. I'm not sure if the other two are still young enough to be fertile, but even if they are, they don't have a male to mate with. And since some racist attitudes against their race exist on the continent, it would be hard for them to find a male from another race to at least get some crossbreed babies.
This is a perfect example of how males really do help the queue, too.
