Seems you have the raven/crow stuff covered well, so I'll give you a little info about the other two
Toucans can be very affectionate or complete idiots, depending on species, age, sex, rearing - a ton of factors!
They are quite expensive to look after - needing a special low iron/low Vitamin C diet. Medicine and vet care can be hard to get - think about how many vets will have experience working on toucans!
They need a big flight aviary since they can't climb with their beaks like parrots can.
Their poo is phenomenal. Since fruit is the main component of their diet, it's very runny and they'll squirt it out everywhere. I've never known anyone who kept them indoors, but I think an outdoor aviary would be a much better idea. Of course the question in that case would be - how cold does it get in your area? Toucans don't do well in the cold!
Hyacinth macaws have fantastic personalities - the 'gentle giant' of the macaw world, and my favourite macaw! They are sweet, easy to train, absolute clowns and get along well in groups. However they need a huge flight made of tough metal - their beaks can easily bend anything that is too low gauge.
Also if you only have one they need constant enrichment, a bored hy will start to pluck almost immediately, they're probably rivaled only by Gang-gang cockatoos and African greys in this department. The aviary we had ours in was huge, plus they went for a fly around the zoo every morning and evening. They were also a flock of 8, so were constantly entertained. By themselves, they need companionship and entertainment more than any other macaw I know.
They need dense wood to chew on, and a regular supply of it too! Plastic/rubber toys are useless, you might as well serve them up a platter of broken shards XD