Hi and welcome answer to your question is easy.....You are colony breeding and there is fighting over possession of the nestboxes. You will have deaths of birds and smashed eggs and dead chicks. You have chosen the hardest way to try and breed budgies.
Hello Kaz,thanks for your reply.I dont know what colony breeding is and i am not a budgie breeder.The cage was given to me with boxes allready in there.I think there is now one male and two females.Came home today and another egg cracked with yolk everywhere hi, thanks for the info. I dont know what colony breeding is and i am not intentionally breeding budgies.I dont have any pics.The birds are just in a standard cage with two nest boxes which were allready in there when i received them