The calls are a series of loud braying, squealing screams that descend in loudness. It utters a donkey-like braying call around the breeding areas. His Benedick was played as an officer-class buffoon with a moustache and a braying laugh. Daffy's head slowly changes into a donkey's head, {i.e. Jackass} and he starts braying. The name "Iaal" is derived from the sound donkeys make when braying. Nestlings make a loud continual monotonous braying call to beg parental adults for food. The bird then waves its head from side to side, braying loudly. It depicts the Studio Chief (Sid Caesar) as a braying donkey. Cows communicate with their calves through braying. The dance uses Bottom's braying from the Overture as its main thematic material. Preliminary analysis of braying calls and cluster analysis of morphometrics partially supported these results.