Didn’t know anything about it! Sounds fun
I had thought about setting a few of mine as mixed breed's for it, but I'm picking up 10 Aloha chick's on Saturday, and will possibly be getting some hatching egg's of the same breed from a different source. So if I get the egg's too I'll have to set them right away and can't wait until Dec. 11th to set them for that hatch-a-long.