The perfect combination for a successful hunt, is to start out by bugling and end it by rattling.
This little marvel known as the Sparring Bull™ is unlike many of your ordinary diaphragm calls. It is made of an aluminum insert, not plastic or cardboard.
      Rattling in Bulls is a great method. However, you need to mix in the accurate sparing sounds. As mentioned in "Sportsman's Bowhunting Annual", the following excerpt is how to call in Trophy Bulls by using both the Sparring Bull™ and the Rattlecage™.
      "Try to sound like a cat in heat." "Whaoh, whaooh, oowow. We're talking high-pitched mews. The key is making them run on top of each other, rather than pausing like (you would with) a conventional cow call. Call for about ten seconds, pause for a few seconds, repeat. Like Roger says, "You need to keep calling pretty much the whole time you rattle."
      If you need to be calling the entire time you are rattling, that makes the Sparring Bull™ the perfect call to use hands free. You can't beat the combination of these two hunting power tools. It's like having two expert guides with you on every hunt.
      You don't have to take any one's word for it. You can see for yourself what a great tool this is by ordering Sparring Bull™ for $4.99+SH.