I got these two from a bin labeled Blue Rock. But then one grew up to be completed black, with green metallic feathers. Not very Blue Rock of her.
Do you think Black Betty is an Australorp? And do you think Snowy(the silver one) is a Blue Rock or a Blue Australorp?

Do you think Black Betty is an Australorp? And do you think Snowy(the silver one) is a Blue Rock or a Blue Australorp?