Remember you may be putting all of your birds and any human who has come in contact with Ruby at risk for respiratory diseases associated like Pneumonia. In this case I think the responsible thing to do is to find out exactly what is going on. Otherwise you will be holding your household and birds in quarantine for a long long time.
https://www.beautyofbirds.com/chlamydiapsittaci.html I know and understand how you feel but there are other lives that may be involved here. I am not meaning to be harsh to you. I want to give you a hug for all you have been through.
This article shows the test that can be done on a suspected bird including radiology. http://www.lbah.com/word/avian/parro...r-psittacosis/