Introducing the Flag Brad Barkemeyer works with a rider who is new to the working cow horse. Before working with cattle, Brad teaches his rider how to properly work the flag. By H&R Editors | May 18, 2021 | 1 minute read Watch Now! Brad Barkemeyer teaches a new cow horse rider how to properly work a cow. Watch as he walks her through keeping proper position on the flag and get insights of why flag work is so important. Click to watch here. What did you think of this article? Submit Rating Thank you for your feedback!