I have a confirmed male and female pair . it can be that male never learned to mate properly . I hope this time it would be fertile eggs :21:It all depends. There are some pairs that have one of two infertile clutches before the eggs are fertile. There is a possibility also that both birds may be the same sex and therefore would not produce a fertile egg. Or perhaps the male never learned how to mate properly, and isn't really getting the job done, if you know what I mean. lol