So I am really new with chickens. My first year (spring 2013)purchased 5 chick hens and 1 chick roaster from the local hardware store. We have had a great year and everyone made it and have been laying eggs. I would like to increase my flock this spring by 2 or 3 chicks and would also like the experience of hatching. My questions can I just leave a few eggs in the nest box and one of the chickens will start to sit on them? Thanks in advance for you time and experience.