Black Magic It is an advanced design that will bugle like a frustrated bull. It also has the capability of producing excellent clarity when making cow mews and chirps.Reaper It was created to make very aggressive bugles sounding like a frustrated bull challenging for the herd. You can also get it to reproduce the estrus whine of a cow in heat.Spellbound* Designed for the caller who loves to challenge a bull. Its double latex design will make incredibly realistic display bugles.*Due to the lack of availability of the purple tape used to construct the call, the color of the tape has been changed to brown.