Personally, I don't like the idea of "mixing" breeds. Unfortunately I think that there are probably far more mixed breeds being sold as purebred birds than people imagine.(the "blue with gold hackles and absolutely no white pullet", recently referenced, IMO is probably an example) The Swedish Flower Hen breed is so new here in the states the numbers are still relatively low. I think as responsible breeders, we should work within the breed, and cull aggressively, anything that doesn't conform to what we "expect" in a Swedish Flower Hen. IF each breeder mixed in one or two hens, it wouldn't be long before the breed, in the US, was just a mish mash of mixed breeds. That's why I have an issue with the Landrace idea. If people think "its not a breed" they can do "whatever"....! I have seen SFH's described (on this thread) as "Mutts". I would hate to see that become a reality. That being said, I must confess that I have, in the past, crossed my SFH's with my Ameraucanas to produce olive egger EE's, but they reside in the EE pen as EE's and are very easy to differentiate by egg color. That would not be the case in another breed. Just my $.02 worth.