He's making his cool raptor noise here.
Caesar's also been doing really well in regards to clicker training. I slacked off for a while due to how busy I was with school, but just the other day I asked him to come to me and he flew right to my arm. He remembered everything I had taught him back in the fall! But he's a smart one... he would only fly to me if he saw I was holding a treat for him.
Before getting the harness on him, I was teaching him to pick it up with his beak and using the clicker. I just realized how easy it would be for me to teach him to drop objects into a cup or to "play basketball". I swear, this bird is far too smart for his own good.