Yea yea I know Alex very well and he died on my wedding anniversary. He is incredible.
I have 2 Moluccans (have had 5). They are the true geniuses of the bird world. You have to padlock them in their cages like Houdini because they can pick locks, you can't use a combination lock, it has to be a key lock. My two talk in complete sentences, recognize visitors by name, etc. All my birds are smart, actually my B&G is pretty much of a genius too, but the M2s, they blow them all away. They are not good pets and I don't think they should be kept as pets, mine have had multiple homes (1 had 10 homes in 10 years) because they need so much mental stimulation.
My M2 heard some classical music and then after that he would compose little sonatas in the afternoon, not copying what heard, improvising and inventing and using correct structure, stuff I had to study in college. That's pretty smart but not in a conventional way.
My Jessie is brilliant too and she is a troubled dog, that's why she has problems, because her mind is so incredible. As a problem solver, she is always three steps ahead of me.
I've known border collies and I do think they're very smart, poodles are really smart too but GSDs are INTELLECTUALS