I have always wondered why the cockatoo screams in this [1] video, when it is the aggressor. I suppose that's the cockatoo's way of laughing? [1] https://www.y

I have always wondered why the cockatoo screams in this [1] video, when it is the aggressor. I suppose that's the cockatoo's way of laughing? [1] https://www.youtube.com/watch?v=PRQebpwoOg8 https://www.youtube.com/watch?v=PRQebpwoOg8