I'm trying to search through some threads on this issue myself - and many of them get WAY too long for me to prowl through. I have 10 pullets and 1 rooster, all 5 months old, mixed flock. The pullets have started laying and I am slowly increasing my daily egg yield. One of the pullets went broody on me and apparently some of the others have now established an alternate nest out in the chicken yard. I happened onto it yesterday and gathered 12 eggs that I plan to feed to my dog (no idea how long they've been baking in the sun). I'm guessing Ms. Broody may be discouraging nest-sharing. I have one oversized nest box that comfortably seats two. I'm working on breaking the broody, and hope once that occurs, the rest will resume laying in the box. Meanwhile I'll just gather from the yard nest. I also have one fatty who somehow fly/flops herself out of the fenced yard and has established her own personal nest in my flower bed. After she lays her egg, she gets herself back into the chicken yard. If I catch her wandering outside the yard, she goes right in when I open the gate. Open for comments or suggestions.