I think they are red lories!!! They look like those, only one has those blue feathers, but the other's feathers on the wings are more greenish, also they have a bit less blue/green.. but other than that, they look like those! 8) Next time I go to my uncle's house, I'll take pictures of them.
They are adult, he has had them for a couple of years now. I'm not sure how many years, but I'd say more than 6... They have a dog (shar-pei) that's 5 years old and he has had these birds since before the dog. They don't have special diet as of I know and don't have any distinct smell to them. They do laugh like my aunt.. LOL
The white one I think it's a greater sulfur crested cockatoo. I have so much fun whenever I visit! Paco, the blue and yellow macaw likes to call Rolex the dog, and after Rolex runs to him to see why they are calling, Paco plays innocent, and after Rolex goes away, Paco starts laughing! LOL.. Paco is the one that knows most words, one of his favorites is Paco and the other is "callate" (which means "shut up"). The red ones only laugh, but they are so funny when they do so!
Wow, I didn't knew that parrotlets were so small! hmmm.. now I'm interested in them. I would like to have a bird in the future (far far future).. I like macaws, but I really would like something smaller.. that's one reason I was looking up these red guys, cause I would like something their size or smaller, but I'm not looking for budgies, finches or canaries. Maybe a cockatiel.. but would like something that looks more like a parrot.. and if I can teach it to say some things would be really cool (I need to see which small birds have that ability.. that's also why I'm researching.. hehe)
Thanks again for your help! 8)