Over the past 2 weeks we have suddenly and without warning lost 3 of our babies. First was a Serama hen 2 yrs old and very well taken care of she was my daughters favorite bird. A few days later my best Serama Roo and 2 days after that my sons Sebright roo. None of the birds act ill in anyway. Does anyone have any ideas what might have caused this or is it likely a fluke? They are all kept in 30x30 rabbit cages with their mate. No food changes, no diarreha or any other illness apparent and none of them share a cage with the other. The mates they left behind appear to be doing well.