Do you know the reason why some eggs you buy have darker yolks?
It’s due to their diet. Chickens that are allowed to free range have access to healthier and more natural feed. Chickens are naturally omnivorous and eat green stuff, insects, small rodents etc. In the winter it’s harder for them to get a varied diet but they always go in with the sheep and help themselves to the alfalfa.
Grain fed and free range chicken eggs have the same protein and fat. Alfalfa and other darker green plants contain xanthophyll which is what makes the yolk more orange. Studies have shown that free range eggs are higher in omega-3s, vitamins and beta carotene and have less cholesterol.
Our chickens have access to the outdoors everyday but they don’t always go out when the weather is inclement.