I got them around the 5th of this month, so 22 days. The previous owner had them probably all their lives.
I have given them the opportunity to get out of the cage but they never did. I don't really know what the position of their crest means, but hers is always standing up, and sometimes it'll lay flat on her head. Elvis's will be up, but not as straight up as Priscilla's. If he sings, it'll lay down. When I'm near the cage, they're up, or he'll lay his down. She keeps hers up 99% of the time.
If that has anything to do with it at least.