A narwhal makes a range of sounds. The sounds include clicks, squeals, trills, and whistles. Scientists still are sorting the possible reasons for the wide array of sounds. But one suggestion is the use of sound for communication, and for the echolocation purposes of hunting and navigation.ound is mechanical energy, and anything that exhibits movement can make sound. But the sound has to have something to travel in. A gas or a liquid or a solid is a medium, and … the sound will travel in them (or will be conducted through them).