These are direct from Greenfire Farms. I have seen an occasional hen pop up that lays a blue/light green egg. That was known to happen in the GFF line of rhodebars. I pull the hens and just hatch from the brown layers but occasionally one shows up and surprises me. I recommend those always go to the layer pen and be pulled from breeding. At one point I tried to breed them specifically but still then only got about 50/50 blue/green eggs even when I created a pen of "rhodebars" that only hatched from the blue/green eggs. So, it was too unpredictable to keep working with.