But when it came time to make the horse sounds for a movie like 2010's "True Grit" remake... Marko: I used rocks, because you could hear the sound of the impact. When you're using coconuts ...

In the above video, you can see a horse making an exaggerated and repeated ... Stereotypic behavior in horses includes cribbing (a grunting noise as the horse grabs an object with its incisors ...