Uh, no.. This is not just some "tall tale" about ufos. It's not even close. It comes from a book. You know, book? That think you never read? The thing the teachers are yelling at you to look into? That thing.
All *I* know is that they were loaned to a front line bf110 unit in Norway in 1940. They performed there much better than the bf110s, and the pilots (in this front line unit, who actually fly combat and whatnot) said that they preferred it much more than the bf110. Considering that the Germans flew prototypes into battle, I doubt the loan of these planes to a front line unit would have them fly it and NOT fly it in actual missions.
REGARDLESS, the kills that were claimed on this plane were not claimed while it was in Norway. They were claimed while it was flying protection over the factory itself. That is how the book read, to me.