Lurch used to always get tiny floofies in his nose I was always trying to clear out for him without getting bit. Nerd was always uber skinny and originally had bad feather color like yellowish feathers and was missing several flights on one wing that never seemed to come in properly. I gave him some oily parrot feather vitamin that actually seemed to help. Eventually all the discolored feathers molted out and except for the bad flights he had normal feathers for the rest of his life. Asper was never mentioned the times he went to the vet and they found several issues that concerned them that never changed when checked again so they decided he was just a very skinny version of a Maxi. His blood work always seemed good and he was a happy stubborn runt of a Maxi who just happened to love me and think I was his world.
Lurch was HUGE by comparison weighing about 260 vs Nerds average of 214. I NEVER heard him weeze and he was fearless and not afraid to go after anything that he felt needed it. He was scared to death and quick to bite when I got him and after a mere 5 years decided I was trustworthy and his chosen one. He'd still bite when offended or triggered but he didn't try has hard and started warning me first. I sure miss his grumpy self as we were still making little breakthroughs when he escaped
Dobby is the most confident, outgoing, socialized, gentle Maxi I have ever had. He weezes when upset but his are very quiet and fast. He has chosen my sister but likes me as well, but she us the one he chases like a puppy, Lurch did that to me, Nerd would just walk to my room to find me making traveling music as he walked.
Lurch talked a lot and sometimes in context, Dobby talks a little unless really excited but loves to whistle and make sounds, Nerd never talked, he spoke wild Pionus and we understood each other perfectly. He also knew his name and had a name for me, babeep, I guess his version of Terry or something. Nerd also loved to finger fight and play certain games, like try to catch me and I'll dive down the back of the cage before you do. I spoke Pionus back to him plus all his nicknames and like that.
Each bird was his own soul with similarities, and their own quirks.