Ok, I thought so, this is bad idea- one foot 5 toes and other 4 toes!? Ok, thanks I'm not gonna mix.Yeah you are right. I did not notice in the title that the rooster is a Favorelle. So feather-legged, single comb, muffed, five-toed, light cream eggs.
So still half black and half blue chicks. All should have a muff. If the Araucana is laying a blue egg, probably light green eggs from the pullets. If the Araucana eggs are green them they can be darker. The chicks should have a wonky pea comb. Feather-legged and five toes are both dominant so they chicks uld have these features. But these can have funny effects. Sometimes the feathering is not all that heavy. Sometimes the number of toes is not pure, occasionally you can get five toes on one foot and four on the other.
I just saw another breeder photos, there were splash faverolle cockerels (all white with rusty color splashes) Everyone had 5 toes. I asked about parents. He mixed salmon faverolle rooster and dominant brown hens (some common country breed) I just thought to give a try. But i have blue salmon faverolle hens too, so I'm not going to risk. I also get interesting colors from them.It really doesn't happen that often, I would not let that slim possibility stop me. Though I don't know you goals.