I'm pretty new to raising chickens, this is the first year I've had them. They lay very pretty brown eggs and I notice the yolks are orange. Not like the pale yellow you see in the stores. Is that a good thing? The eggs themselves are the tastiest eggs I've ever had. The chickens are free to just "roam" around the yard and they eat a lot of bugs, grass, seeds... they seem to not like cracked corn or grains much and prefer to dig for bugs. Could that be the reason their egg yolks are orange?