My girls are now 16 wks old. I have an Easter Egger, Black Australorp, & Barred Rock. I know that they will start laying at different times and it all depends on the pullet. Is there any tips for when they start laying or what I should start doing now? I had their nesting boxes blocked off so I have unblocked them and added some bedding. Should I add golf balls? How do I get them to know where to lay. I noticed that their combs and such have starting turning a brighter red. These are our first chickens ever so any tips are appreciated!!