That was an awesome video, I like the part where the eagle almost lands into the water due to that falcon, though I did not see this video before. I think it was actually a hawk in the one I saw and although I could not find it, I did find this one.
youtu.be/Hpz66RYD110Joan's screech would mostly consist of that similar to most birds of prey and she'll even scream it into Pec's face in the hopes of splitting his ear drums while being thrashed about.