I have had my chickens for almost a year now. They are a Golden Sex Link and have pretty brown eggs, but lately within these last few weeks they are almost white! Why would they all of a sudden change the color? Could it be because I changed the brand of feed? Right now they are eating Layena (sp). Only because that's what was available at the time since my regular feed store was closed and I needed the feed right then. Anyway... any info would be ease my mind. Thank you!