I hope this hasn't already been covered. I did search for it! I have Marans, araucana's & Australorps. All of their eggs have gotten significantly lighter over the last 3 weeks. My beautifully dark Maran eggs are now just a brown. My bright blue araucana's are pale and even my Australorps have gone from cream to almost white what's happening??? They were all hatched at the same time or within 6 weeks of each other at least. I have increased protein and have given them extra shell grit. The only thing that has changed is we had someone watch our rooster for 6 weeks while we organised a crow collar and we got him back in roughly the time their eggs started to go lighter. Although they lightened pretty much the day he arrived and got consistently lighter from there. It wasn't a sudden change in colour. It's been getting more and more obvious over the last few weeks. I will take a photo tomorrow morning of some fresh eggs with some I have kept from 2 weeks ago.