I noticed my Rooster and Hen "doing" something (which I guess fertilizes the egg?), and I also noticed that around her face has gotten really dark red instead of being a light red. She has been walking with the rooster and just hanging out with him. Does this mean the egg can be on its way? If so, how long will it take before she lays the egg? I also have a question unrelated to the topic, but an answer would be nice: If chickens lay eggs every other day just about, then how do they take care of all of their eggs? And do they make their own nest in the hay we got them, or do we need nesting boxes?