Tumblers/rollers, white coloring covering top half to whole head, usually called "badges", in birmingham rollers marking called "baldhead". All rollers are tumblers, difference is in how they flip, how fast, and how many times. birm rollers should roll ten to thirty feet for competition flying, but some like them rolling fifty to one hundred feet (birms bred to supposed to roll fast tight "ball" or "doughnut" looking in air as fall straight down rolling, breaking out of roll hopefully before hit ground (otherwise called "roll downs" or "bumpers"), then return to tight "kit"/flock, were they should "kit" tight together close, hopefully getting few to several or all to roll together.
