Premium Feather Member
Interesting I always thought it was wired. I got them from a backyard breeder who had a splash rooster 4 black hens and 2 blue hens. So I just assumed the colouration came from the splash. Here is a photo of all the hens if you could tell me your input. View attachment 2890136 View attachment 2890137
Splash doesn't have anything to do with it. Splash is what happens with a bird who is homozygous for the blue gene (sorry, my knowledge of chicken genetics is limited and I can't explain further).
Any red/gold indicates that it's not pure Australorp. Likewise the yellow in the feet -- Australorps have white skin.
HOWEVER, Production Blue crosses are likely to be CHAMPION layers. What I've heard about them is that they're hardy and vigorous. I don't own one, but I haven't heard a bad word about them.
You have very beautiful birds.