I had not tried the burgandy, this was my first year ever to grow it, I'm not an okra eater, so had never grown it before. I don't think it is a color thing though, they eat other green stuff I put in for them. They would have happily eaten the seeds if I cared to shell all the okra for them, which I wasn't about to do, I did cut the pods long wise hoping they would eat the seeds out by them selves, which they did not.
It is high in B vits and micro nutrients that would be great for them, I got them from Meyers Hatchery, so I kept tellling myself they aren't southern chickens that's why they won't eat the okra.
Oh and the web sites will say you can buy duckweed from pond supply stores, don't believe them, I asked at every pond supply store in a 100 mile radius of my home and most of them actually found the question offensive!!!!!!!!!!!! Seriously. You can buy it online, or raid a local pond that has some.