Well Beast's been around for awhile since 2010
[link]and i only started watching you this year. I'd never seen or heard of your breed before then.
There's tons of differences though, idk if the Penna's can lift there tail, but the Pavo's can lift there tail like a peacock, they have feathers behind the ears, they generally dont show mutations unless bred to a horse w/ them (ex: if they bred to a winged/horned horse) This isn't necessarily a breed its a genetic defect.