Don't get me wrong, if you want a bird, I want you to have one, just trying to raise one from an egg is practically a guaranteed fail ... and really heartbreaking.
To answer your question, it's similar, but not the same. Length of neonatal care is more like a hawk, but the feeding regime is more intense, baby food has to be the exact right temperature, mixed up special every feeding (if you try to make a batch and just warm what you need, they'll die), and then they need you to vary the diet once they start to feather out. Behavior and socialization is SOOO important. There are breeders who just feed and go, because let's face it, it's exhausting, and very often those birds grow up with behavior problems, sometimes serious. Self mutilation is a major issue in parrots.
Now, my DD (20) wants a severe macaw, after having done like 5 years of research on parrot care and species. We hope to get her one this summer. How? I have relatives in FL, where there are a lot of breeders, and we are timing our visit with a bird clubmeeting/club show, where we will meet birds and breeders in person, and then if we don't get one there, we will get on a carefully selected breeders waiting list.
Because even a short-lived macaw is a 30 year commitment to an animal capable of ruining your life, and so we want one who was raised Just Exactly Right. Even I, who have handfed MANY psittacine birds to happy, well-adjusted adulthood, do not want to take on the hand-feeding/socialization/early raising of a macaw. Not because I don't know how, but because I can't devote 4 months of my life to it, and that's what it takes. And, having done it, I will guarantee you that it is a skill you have to learn, under the instruction of someone who is good at it