My four girls, born/hatched May 1st, just turned 18 weeks old. No one has layed anything yet, but just this past week, somebody has (three times, now) kicked out of the nest boxes, the two golf balls I put there as inspiration. I put them back, they kick them out. I don't know if it's esthetic disapproval---(the golf balls are purple and hot pink....I work near a mini-golf), or if it is an intellectual disapproval---("we know that these things are fake...you can't fool us"), or if it is a physical disapproval, like the princess and the pea---(Ouch!). I'm also not sure how they are doing it. I say they "kicked" them out, but I didn't see them actually "kicking." I don't think it could be any other method, unless they are working cooperatively and nudging it out with their heads, like a little soccer ball. I wonder if they will think their own eggs don't belong there either, and kick them out too!
mm