Since my RIR have started laying and lay they have almost 1/2 doz a day from 5 RIR and 1 banty, we compared the yolk color to the pics we have seen in our poultry mags. They don't have that beautiful orange glow. I am wondering if this is because our birds are not free range. They get a 16% layer feed and they get kitchen scraps. Anything in particular I can do to increase the color of the yolks? They are definitly tasty!