I had a similar experience once. Went to a a breeder's aviary to see her ringnecks and passed by some greys and macaws and saw these very strange, very clearly angry parrots I had no idea about. Turns out they were hawkheaded parrots. Smaller in my online research than how I remembered them from seeing them in person (about the size of a TAG) but they were so displeased with my being there that they were puffed up and displaying and looked much bigger for it. The first bird I had was a white IRN when I was around 16. Did a lot of learning after having gotten her also, but that is more for my being a silly kiddo than the lack of information available. It's definitely an adventure. The most we can do is try our best sometimes. Java seems very happy in a pet home for a former breeder, so you must be doing a great job.