HOW do i know if my cockatiels about to lay eggs like what r the symptoms??? also my bird keeps flying off her perch and goes under a table or the crib in the room and her mate follows her too. also sometimes i hear noises coming from the room their in and it sound almost like baby chicks and when i go there my female is making a noise like that and sometimes the mate too… also every time i go in there she goes crazy she jumps all over her cage and starts calling me obviously she wants something but what?? her food water toys everything is in there??? and they wont stop SCREAMING it is really getting annoying and they can get LOUD and sometimes they start screaming really loud and i run over there when they do and they both go crazy trying to show me what they want but what is that???? 
.
someone give me a really good explanation of the symptoms of when a bird is about to lay eggs and i dont have a nest box for them im trying to get them one but in the meantime what else can i give them to use and where should i put it for them??? thx so much!!!!!
