Okay...I have 4 layers, a RIR-(she's been laying for over 6 months now), and three new layers, a Golden Sex Link and two Red Sex Links. I noticed esp. with my RIR that her egg is alot lighter. Now I have them in the garage with artificial light-(White Christmas lights and a Heating Lamp)-that isn't directly on them. My RIR Mushroom's eggs were brown and now they're like a Cream color. I have oyster shell for them so they can freely eat it. I put them in the garage because it was too cold and too much snow. They've been there since October in a pen which they're very content in with lots of space. Is it the artificial light or is this normal for their eggs to change colors?