Pineapples keep breaking their eggs.

[BABYBLUES]

She is well into her second clutch (double clutch) and they will have up to five at once time in the nest box then start breaking them. I do not understand why this is happening. They did not do this with their prior two clutches and were wonderful parents. I have them on very good seed, fruits veggies, calcium, etc. eggs are not soft, I do not know whats going on..any ideas?

[Birdmanca]

I do not know why either, as never had this problem, at least yet. Somebody on this site will most likely be able to help you, or let you know of a good website to check out.