I am a complete newbie. I live in North Western Illinois. Cold winters and hot summers. Quick history so far. We started with 4 chicks in the mail (2 buffs, 1 BPR, and 1 dominique) back in early June. We lost two (the buffs) to an animal when we were out of town. We replaced them with 1 buff and 1 Ameraucana from a local breeder (hatched in late April). The BPR was found dead one day in the coop. Down the three healthy birds. They were on starter feed + 'free range' ~6 hrs a day 4-5 times a week in the back yard/ garden. In the past month I switched them over to layer feed. They get a handful of scratch a few times of week. We still have not seen any signs of eggs. Any suggestions on what I might do different?