I spent a while learning how the autosexing genetics work and found a lot of info about turning my favorite breed, the Welsummers, into an autosexing Welbar. Really, a Welbar is just a Crele Welsummer. There are Silver Duckwing Welsummers, but when the Crele were created they were given the name Welbar, I assume to ride the wave of popularity around autosexing "*bar" breeds.
This is a fantastic site to learn about the history and the current status in the UK: http://www.harislau.info/welbars
I used the breeding chart on that page to create them, and it also shows how to outcross back to Welsummers to enhance the genepool. Of all the autosexing breeds that I am aware of, only Welbars have this property of being easily outcrossed to their founding breed, you can't do this with Legbars, Rhodebars, or Bielefelders, but it's trivial with Welbars. A Welbar cockerel over any Welsummer pullet will produce 100% female Welbars. Cull any male chicks, put their father over them and you have a 100% autosexing Welbar flock in a single generation.
Okay...I think I gained insight into your breeding project today. Pretty AWESOME. I totally enjoyed all that information. It really gets your mind going....I read the site over and over.
Very cool.
Hens go broody when you don’t want them to… and won’t go broody when you do. 
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