I got 5 chickens 3 weeks ago ( they are 3 weeks 1 day old) I am pretty sure 3 are girls, my EE is still a guess but I am thinking my OE might be an Oliver. The comb grew in comparison to me SS much more. I think it is a cross between an Ameraucana and a Welsummer. Here are some pictures. The tail feathers look just like my Speckled Sussex, it’s the comb which has me worried. I am not allowed to have a roo plus I am getting super attached to my girls.
I went back to the store where I bought them and exchanged „Oliver“ for one with a smaller comb. It’s overall much smaller. Funny thing is they had one in the store which looked like mine and when mine was put to it they were standing tall and squaring each other up. None of this with my new one. Here is a picture of hopefully the new Olive.