Why Are Backyard Chicken Egg Yolks Pale? At BackyardChickenNews, we help people who want to raise backyard chickens by collating information and news blended with our own personal experiences. If you’ve ever noticed that the yolks of backyard chickens are pale, you’re not alone. It’s a common problem, particularly among free-range or pasture-raised breeds. While artificial colors are not legal for hens, you can add dried marigold flowers and calendula flowers to your chickens’ diets. They also contain carotenoids and can improve the color of your hens’ eggs.