The reply to this post is relevant to people with either a single female or a pair, so it can help more people.
We have a 2 yr old female who is by herself and keeps laying unfertilized eggs! I can't get her to stop doing this! many times I have allowed her to lay her clutch (about 6) and then will allow her to Play house for a couple of weeks (this is after she has been laying for a couple of weeks in order to get to 6) so this is a working project for a month! and then I take them from her and then she is back to her normal self. I have heard that it's not good for them to keep laying. Do you think she is driving herself crazy trying to have babies???? while she is nesting she holds her poop and has VERY large droppings which I know is normal, but sometimes she starts flapping around her cage (large California cage) and poop gets all over our house walls and running down her cage, all over the floor, what a mess! I have small children and I know this could be a health issue. I'm beginning to wonder if she would be happier if I would find her a new home where she could be a breeding bird (only to someone who would ALSO give her individual attention) I would never give her to a breeding mill!
She has always been the only bird in her cage. I really need some help! anyone who could give me advice, I would be very grateful!