When I was reading that neat breed site, it said that some breeds could be auto sexed at hatch, for generation after generation. (Unlike a sex link, which is only reliable on the F1 generation.) I can't remember if the SFHs were one of those breeds... let me go look.
Nope - no mention of auto sexing. It did say this:
"Few breeds are as practical as Swedish flower hens. The roosters have a powerful upright bearing and a broad chest. The hens are prolific layers for most of the year, and they far out-produce other breeds like Orpingtons. The first pullet eggs produced by a young Swedish flower hen can be rather small. Be patient: Within a few months the hens will be generating extra-large eggs that are perfect for the table. The breed is also well-adapted to colder temperatures. Occasionally, flower hens have a feathered head crest, although the woman from whom we received our first shipment of birds selected against this trait in her flock. We later were able to locate and import four crested birds from an unrelated flock, so we have the ability to produce genetically diverse chicks in both the crested and uncrested varieties and in all the colors associated with this breed: black, gray, white, and red."
And they sell straight run day old chicks for $19/each. (That is a huge bargain over the Cream Legbars, where the auto sexed pullets are going for $99/each!)