Welcome to the community, and congrats on graduating and your residency!
I gotta say that I hate to be negative about people wanting to add a Parrot to their families, because they really are unlike any other "pet" you'll ever have in your life; unfortunately that is also the reason that a lot of people just shouldn't bring one home, at least not during certain periods of their lives...Keep in-mind that anyone here telling you that it's not a good idea for you to bring home a Parrot of any species right now, during your residency, has nothing to do with what type of "Parront" you'd be, because I for one am sure that you would be an awesome, loving, affectionate, responsible Parront...It simply has to do with the daily work-schedule you just described that you'll be working day-in and day-out throughout your residency, and the fact that it is not at all compatible with owning a Parrot and keeping him/her happy and healthy physically, psychologically, or emotionally.
All species of Parrots possess the same level of intelligence of a 3-4 year-old human child, from the smallest species, a Parrotlet, to Budgies/Parakeets, to Cockatiels, to Conures, Amazons, Macaws, Cockatoos, and every species in-between. And what separates the intelligence of a Parrot from that of any other type of "pet" (except for pet Primates such as Monkeys, Lemurs, Galagos, etc.) is that they use logic and reasoning skills, and they have memories that are better than ours. And when you combine their cognitive abilities with the fact that they are Flock-Animals that require an enormous amount of out-of-cage-time and direct-attention every single day of their lives, this makes them extremely rewarding pets to add to your family, but also extremely difficult pets to add to your family.
The #1 underlying-cause of the start of a Parrot exhibiting Feather-Destructive Behaviors such as Barbering and Plucking, as well as Self-Mutilation, is them not getting enough hours of out-of-cage-time and direct-attention from their "Flock-Mates" each and every day; this causes severe boredom, depression, loneliness, frustration, and anxiety in Parrots, which in-turn results in Neuroses....And people who didn't realize in any way just how much time having a Parrot in your life requires every single day, as well as what starts to happen behavior-wise when the Parrot that they already brought home isn't getting enough out-of-cage-time and direct-attention from them every single day is BY-FAR the #1 REASON why there are currently literally tens-of-thousands of Parrots up for adoption in Rescue and Shelters, and being re-homed on sites such as Craigslist, BirdsNow.com, BirdBreeders.com, etc.
So if more people would really look at the amount of personal daily time a Parrot requires of them every single day and then overlay that with the amount of free-time they have at home each and every day BEFORE they just go out and bring a Parrot home, like you are doing right now, the number of Parrots in-need of adequate homes would be easily cut in-half, at the least. So I really am grateful that you are here describing your situation and asking whether or not adding a Parrot to your life right now or in the near-future is a good idea BEFORE you actually already have one, and I thank you for doing that...
That being said, I think that both you and any Parrot you would bring home and into your life would be much, much better-off and the situation will be much more successful overall for everyone involved if you wait until you're done with your Residency to add a Parrot to your life and your family...I just don't see any way at all that it would be possible for you to provide even close to the amount of attention that a Parrot needs every single day based on the schedule you just described, especially considering that you already have a dog, a Tortoise, and other pets that require all of your free time already...
And I think that exactly the way you need to think about this decision, from the point of view of not only the new Parrot, but also from the point of view of your dog, tortoise, and other pets/family members you already have...You have already made a commitment to them, and the amount of time you're going to have for them is going to be less/limited throughout your Residency...So how in the world is it a good idea and how is it going to end well if you not only just add another pet to the mix, but the most time-consuming pet you could possibly bring home except for a Monkey or other Primate??? That's what you have to think about, because you need to not only be fair to the Parrot, which it definitely would not be, but you really need to be fair to the pets you already have committed yourself to.
***Just to clarify, it's a good rule-of thumb to say that any species of Parrot you bring-home is going to at a minimum need to get 4-5 hours every single day of out-of-cage-time and direct-attention from you/with you...Every single day...However, they also absolutely must get a minimum of 10-12 hours of solid sleep every night, as their overall physical-health and well-being depends upon it, quite literally, with putting them on a "Natural-Light Schedule" being optimal to keep their sex-hormones at-bay, their aggression and frustration down, and to keep them not only physically healthy but also psychologically and emotionally healthy. So that means that you can't plan on coming home in the late-evening and THEN spend 4-5 or more hours with them out of their cage and being with you...That's going to be a lot of the problem, keeping the Parrot on a sleep-schedule that is both healthy for the Parrot and that won't cause their hormones to be constantly out of control, but that will also allow you to be able to spend even the minimal amount of time required with the Parrot each day and out-of-cage-time each day...
So there are a lot of different factors you need to take into consideration BEFORE you decide whether or not you adding a Parrot to your life during your Residency is going to not only be minimally-feasible, which obviously isn't at all optimal at all anyway, but also is going to be fair to the bird...As well as fair to your dog, Tortoise, and other pets/family members you already have, because you can't take your dog out for a walk while spending time with your Parrot inside of your house...
Either way we'll be here to answer any questions we can that you might have, and to support your decision no matter what it is...You're obviously a very responsible pet owner because you're here doing research and getting opinions and advice BEFORE you add a Parrot to your life, so we certainly appreciate that...
