Henric had been quiet the whole time, reason being was that he wanted to hear his classmates singing voices. Oh dear...he was struggling to hold back his chuckling fits when Adi chose to sing in order to get Professor's York's attention. Okay....be serious...Henric...question time. He chose the triangle earlier and gave two little taps on it,"I know of one, Professor, "Avifors". We used this to transform or change an object into a flock of birds, the branch it belongs to is definitely Transfiguration."