oscarps
The main sound produced by the adult white stork is the crotoreo that performs with the beak, whose sound is similar to that of some castanets. The stork emits this powerful sound by opening and closing the beak in fast sequences, producing a rhythmic patter, amplified by the gular sac acting as a resonator. Croatian is a means of communication that is used in a variety of social interactions, generally becoming stronger the longer it lasts, and adopts characteristic rhythms depending on the situation; For example, becomes slower during copulation and shorter when emitted as an alarm signal.
