I have a rescued African Ringneck. He was about 18 months old when I met him. My impressions of the species are based on my bird, who was not hand-tame when I got him, and on talking to a few other ringneck owners.
Before I brought Cotton home, I visited a few Indian Ringnecks in a really great store, and also got to meet some different conures, a Caique, and some Quakers, so I think I got a pretty good feel for some of the normal sounds and behaviors of each type of parrot.
In general I would say that ringnecks are more independent in the sense they aren’t going to need to be right on you all the time.
Mine is still a hands off guy, but he loves when people come over and hang out in the room where he lives. He does not want attention ON him, but he likes being at the party.
He LOVES destroying toys, and foraging puzzles. I think the bulk of the money I regularly spend on him is on balsa chunks and toys. He’ll go through a sola stick in 20 minutes, and a 6 inch cube of balsa in half a day. He has a wide variety of other toys he enjoys too, but I always have at least one fresh balsa toy and one fresh sola toy every day. He does need a lot of enrichment – he likes to be busy working most of the morning and for a good chunk of the afternoon.
I’ve had him home for 10 months now, and it took months to build trust. He will take treats from my hand, but if I don’t practice this every single day, he’ll be reluctant to do it for a day or two. He also will make it very obvious that he’s NOT going to work with me if something happened that he doesn’t like – for example, he is not a fan of my Quaker playing on his favorite tree stand, and if I haven’t intervened but just let the two of them work it out, my ARN will snub me for a while. He’s incredibly smart, and is almost always ten steps ahead of me when it comes to training or building our relationship.
I think ringnecks in general are friendly in the sense that I think it’s rare for them to be aggressive towards other birds or people. I honestly can’t imagine a scenario where mine would bite. He threatens sometimes when he’s upset about the Quaker being in his space, but never gets close to actually making contact. When he’s in situations like at the vet, he’s very cooperative even when he’s scared and yelling.
Cotton’s normal sounds are different from an IRN, but he has a very similar alarm call. I don’t find the calls unpleasant, but they are quite piercing so it’s something to make sure you’re okay with if certain pitches bother you. He is pretty chatty most of the day, but especially first thing in the morning and also before bed. I can hear him easily from outside my house with the (brand new double paned) windows shut. Thankfully my neighbors think he's adorable and just say hello when he's yelling at airplanes or the mail carrier
Some things with Cotton are likely to be his individual personality and his history. He is VERY routine. Way more so than any of the other birds I've watched in my home. He puts himself in his roosting spot whether the lights are on or not, at 530pm. In the summer 630pm but only because of our time change - he really hasn't deviated from this more than 10 minutes since he came home. I suspect this is a Cotton thing more than an every ringneck thing.