I put a 2 year old rooster in with my 1yr old girls 6 days ago. My question is how many days should I wait before I start collecting eggs to incubate? They stay in a run together most of the day while I'm working and then they free range 3 or 4 hours in the afternoon till around dark. How many days would you give them to make sure your not wasting eggs that are not fertile? Thanks Stephen