The roo code needs to be tinkered to get these little beast breeding AS SOON AS BOTH PARTNERS HIT 100%. It is inexcusable that they dont, given that they won't breed for a full five days from when they do breed. Each cycle they are pushed out more and more until you are nearly GUARANTEED that you will end up with a two day wait them and no nest to show for it. Perhaps this is Tiger's way to help cut down on nests or something, or simply an oversight but if it is it is a HUGE OVERSIGHT!!! Please, for the next rev of the roos, make their breeding more robust!