Parrots, cockatoos and parakeets, and paratoos (are those even a thing?) are famous for being some of the few birds, and animals for that matter, that can actually mimic human speech. This cockatoo, however, must have overheard its owner rewinding a VHS, because the only sounds coming out of this beak are total gibberish. But, as you can see, the bird is very passionate about its gibberish: it trots up and down the hallway blurting it out for all the neighbors to hear.
If you listen closely, it kind of sounds like Danny Torrance's warning in The Shining, same delivery and cadence and everything: "Redrum. Redrum." Read backwards it spells murder. Read forwards, it means something regarding a drum. Interesting.