The problem that I've run into is that, in Norway, these are considered an autosexing landrace breed. So, they don't keep a standard. They have a genebank for the breed to keep diversity. However, in Scandanavia, they have a standard for the breed, but I cannot read Swedish and you actually have to order the poultry standards book to find the standard. So, unless someone knows Swedish, I'm afraid we're stuck.
I have friends that are Swedish and I'm sure could translate it if I could get a copy of book? Where would that be available to order?