Hi Joekellner. Actually, no one can answer your question for you as each bird is different and only an observant owner/parront could know the answer. I had a re-homed ekkie that I had to re-home (not to worry his new parronts loved him too pieces and he went everywhere with them riding on son's shoulder (he is 6'5")) I also have a canary and a monstrous male CAG. Ana Grey, TAG, is the boss she tolerates the CAG but the ekkie and my canary are bird food to her. She is sweet as pie to me and my family but she can be deadly to protect those she loves.
Can Ruby be out with other birds now? If so, she would probably (word is "probably") be okay out in an aviary. Only time and observation can tell.
As for temperature, my home is usually around 68-71 degrees. If it comfortable for most humans, it should be comfortable for Ruby.
Please introduce yourself and Ruby in the Welcome Room, as we would all like to get to know you. Welcome to the Grey family.