have to agree there alot bonnier, a friend of mine had a bird that had a crest on its head like a crested canary and similar crest around its eyes quite a big bird with feather legs i believe that was an owl but not sure what kind
parents are blue bar cock and hen is a chequer so the colouring of the yb is a throw back from a previous generation , Van Hee is just my suggestion of breed of cock as i have one with the same frilling on the wing but this could occur in any breed