My hens are a year old now, and last year they had run of the entire yard. The started laying in the fall of 2016. It seemed like until about spring time of this year I was getting yolks that were almost orange they were so dark. Now this year, I have them confined to a pretty large run, but there is no grass really to speak of in that area, and I give them an extra layer pellet for food. They have a hanging food holder that's always there. This year I have noticed, for at least the last three months that the egg yolk color isn't anything specatacular. They don't look as pale as store bought eggs, but they aren't magnificently orange like they used to be. So is the egg color dependent on age/fertility, or is it diet, or what is it? Thanks in advance for any enlightening responses.