Thank you all for your additions! Things are going good. The wet droppings have subsided. I haven't regularly been leaving the house since school transitioned to online, so I still get a bit nervous whenever I get home from being away for the day. I may be starting a new job in the next few weeks, though, which might help me get used to that again (I had a work from home job, but the company had to close permanently because of the pandemic and I have been unemployed since).
I mentioned a while ago, near the beginning of the thread, that Dewey (green) was doing a weird wing twitching thing. This has pretty much stopped completely. I think this is a good thing - maybe it was a product of stress, and now he's calmed down? - but I wanted to post some videos of him just to be looked over. I'm getting better; I'm actually not super worried about him like I may have been before, but he has started to just sit around more when the wing twitching stopped. He still chirps, plays with toys and the other birds, etc, but closing eyes and rocking always makes me nervous - and he has been doing this more, I think, since the twitching stopped. Sorry about the quality; it's hard to get videos without disturbing him (also the cardboard is because I have cats. I don't let them in the room if I'm not there. I'm working on a more permanent solution). I might try to get more later, this is just what I have now. Thanks!