We got our chickens Spring 2015. When they first started laying their yolks were a beautiful deep orange. I was making my own feed for them which consisted of: 19 cups split peas 14 cups hard red wheat 12 cups barley 10 cups millet 8 cups oats 1/2 cup kelp 1/2 cup garlic powder It started getting pretttty spending so I switch to a local made organic layer crumble which consisted of the below. I feed them all our left over food scraps which consists of tons of veggies and fruits and more... Guaranteed Analysis Crude Protein 16.00% Lysine 0.64% Methionine 0.43% Crude Fat 3.00% Crude Fiber 4.00% Calcium (minimum) 3.50% Calcium (maximum) 4.50% Phosphorus 0.75% Vitamin A 4500 IU/lb Vitamin E 16 IU/lb Ingredients Organic Ground Corn, Organic Ground Grains, Organic Plant Protein Products, Organic Millrun, Monocalcium Phosphate, Vitamin Premix (Copper Sulfate, Zinc Oxide, Manganous Oxide, Cobalt Carbonate, Thiamine Mononitrate, Riboflavin, Pantothenic Acid, Niacin, Biotin, Folic Acid, Vitamin B12, Choline Chloride, Pyridoxine, MSBC (Vitamin K), Vitamin A Acetate, Vitamin D3, Vitamin E Supplement, Trace Mineralized Salt. I let them free range every single day in our backyard. The only time they are cooped up is at night. It has gotten colder where I live and I have noticed they choose to hang out on my back porch or near their coop instead of ranging more these days because of the rain and snow. But, their yolk has now progressed to a bright yellow. My store bought cage free eggs are a deeper orange than my own chickens, which just baffles me. I have heard that the yellow yolks can indicate a poor diet which worries me. So, if anyone could give me some advice on if I am doing something wrong or tips to get them back to where they were it would be greatly appreciated. Thanks a ton!