There's been another Peacock-Pheasant hanging out at the zoo. That's the one I saw. And yes, it's a wild bird.Unless things have changed, another one that's on the list that's going to get tough after the death of one individual is Palawan Peacock-Pheasant. I'm willing to bet that more than 99% of birders that have seen it, have all seen the same individual bird.
Regarding Rondonia Bushbird, I was kinda bummed that Cajanuma beat me to it. We've PM'ed and it turns out we saw it within a couple months of each other, and probably the same bird.
And I agree with Nutcracker, Sri Lanka Bay Owl isn't that tough. I saw one in Southern India and passed up the chance to see another in Sri Lanka because I didn't want to deal with the muddy hike after already seeing one.
And if travel ever gets back to normal, Araripe Manakin is on my target list for October.