One question, do Albert and Ricky share a cage? What a strange combination, never heard of an Amazon and a cockatiel being friends like that!
Yes, they do! Ricky had his own cage, but would always fly inside Albert's when I'd let them out, and they would share the food dish very nicely xD There were times I'd have to try and get Ricky out to put him back, so I just decided to let him live there xD They never squabble

They'll duel with their beaks every so often(which is the cutest freaking thing that I can never get on camera). Albert would get slightly annoyed if Ricky accidentally smacks him with his tail as they move around, or if Ricky feels like teasing and pulls a tail feather, but Albert just grumbles and moves over lmao.
They don't typically share perches at the same time, mostly because of Albert's size and his mobility to move around makes Ricky move out of the way, but they are not territorial of placements and will take turns and rotate when they feel like it. I have multiple food bowls for them, and four perches in his cage at all different levels for them to move around nicely. They both have their picks of perches that they settle into for bedtime and get comfortable, with Albert being on the highest. They both share very nicely and really enjoy each other's company <3
Ricky is extremely independent and typically doesn't like to be held or touched(he was my mom's bird for a long time and he never was really handled), but he loves my dog and follows her around on the floor and flirts with her constantly, huffing and puffing and singing to her. He has his own unique song he sings twice a day, and he cat calls me when I walk in the door from work xD
Albert is my mushball that loves head rubs and hanging out with me on the back of my chair for tea in the mornings~ He wears his fleece collar for anxiety, which I take off for baths and preening often(but he gets mad because he loves that thing) Pizza crust, fish sticks, pasta, apples, spinach, peanuts, and hard cheeses are his absolute favorite treats, and he says "mmmmmmm" when he eats them xD His vocabulary is small and limited to "Hi Albert! *kiss noises* *sipping noises when I drink anything* *the sound of opening a soda can* "MAAAA" "Where you going?" "LET'S GO! LET'S GO!", "Michael!(my dad's name), mimics my laugh, and a bunch of other things he mumbles under his breath that I can't really understand xD He used to cluck like a chicken but hasn't done that in a long time. He "squees" with delight when he knows he's not suppose to be chewing on the moldings, or tears up his paper at the bottom of cage and throws it. He holds one of this toys at bed time when he falls asleep xD
My boys are very unique friends and quite the odd couple with very different personalities. A real treat and pleasure to be around! I will post more pictures soon!