i have 5 budgies...1 male and 4 females all from 2010 they've lived together in the same aviary for over a year and always got along just fine. they share the aviary with 4 cockatiels. there is 4 nesting boxes in there (budgie size) and 2 cockatiel size. for thepast few weeks2 females have been popping in and out of the nesting boxes, neversitting in there long, just going in, get comfy, then pop back out. now the past few days theres been absolute chaos in the aviary, the male budgie is constantly 'screaming' for want of a better word (that screechy screamy shouty noise) we can hear it from the living room and bedroom its so loud. hes following the 2 girls in and out of the boxes and screeching at any other birds that get too close. theres no nest been made, theres no eggs...just a lot of noise and commotion...... is this budgie mating behaviour or has something upset them and the should no llonger live with the cockatiels or something? i really have noidea...but my fella is getting really peeved with the noise. its startsas soon as it gets light (around 4.30/5am) and carrys on until dusk help??