My 2 year old RIR has always laid brown eggs, but just this past week she's begun laying white eggs. I know they are her eggs. She also has very red legs, like they're sunburned. My other hens seem normal. She eats layer pellets and our scraps and gets free range time in our grassy yard. We are in CA where it's very mild. Chickens have light in the coop and have been laying year-round. Could she have a nutrient deficiency?