Is he truly rumpless, no tail bone at all, or just slow at developing tail feathers. My EE' males have been slow at tail growing. An EE can be crossed w/ araucuana (tailess and tufts) and a muffed ameracuana or other EE, or silkie or houdan or any other bearded breed.
Yep he seems to be totally rumpless, no tailbone. Odd little bugger.
He's a little mystery. I'll certainly post pics as he grows!