I have 4 Amazon's and I do not recommend them as pets. Like all parrots when hormonal they can really test the boundaries and they go through the terrible 2's. Then again every year during breeding season once they hit maturity they get hormonal and mardy and really test you. They are also incredibly intelligent and need a lot of mental stimulation. You will find a pattern in the ages a lot of parrots get rehomed at.
Rather than us tell you whether Amazon's would be a good bird why don't you tell us about yourself.
What is it you are looking for in a bird? You say you are looking at an aviary, will the bird be living out year round? If so one on its own isn't going to be ideal, if you are looking at keeping aviary birds they will need a companion of their own species. However they may not be 'tame' like a house bird would be.
What sort of enclosure are you building?
How much time do you have every day to dedicate to them?
How close are your neighbours, you would be surprised just how loud these guys can get!
Do you own or rent, a lot of landlords can be funny about pets and if you rent and a neighbours complains you could have to rehome the bird.
Do you smoke? The smoke is very harmful to the bird even if you don't smoke around them, the residue stays on your clothes and hands and transfers onto the bird which can cause irritation and in severe cases can cause feather plucking.
Do you use anyq sprays, air freshness, candles, incense, Teflon pans etc etc. All these can kill your birds due to the harmful fumes and chemicals in them.
Taking on a bird is often a lifetime commitment. They can live upwards of 40-60 years and can outlive their humans.
Are you prepared to take on a highly intelligent, messy, noisy, destructive, jelous, manipulative toddler for the rest of your life? Cause that's what you get
Then when you look into finances they aren't cheap to start off with and if you get a destructive one, like mine
, you are forever replacing toys and they tend to be ยฃ15+ a pop. To put this in perspective I paid around ยฃ30 for a couple of new toys for one of my Amazon's. 2 days later they are destroyed. Yeah that's what they are there for, but they don't last! And it sure adds up
Then you have insurance and vets bills, vets for parrots tend to be on the expensive side so you can easily spend hundreds on blood work and check ups. Females run the risk of egg related issues aswell.
Do you love with any children or your parents etc? Who will be handling the bird and taking over the general care? I don't tend to recommend parrots as child's pets, I don't allow any children to interact with my guys outside of their cages. And I'm very selective of who I allow children to interact with at all as I know my birds and some of mine hate children.
A lot of questions but if you can give us an insight into your daily life we can better advise on what species may suit your lifestyle and what species to avoid. You don't want a cockatoo if you live in a flat!