Guessing chick mixes!

[J2_homestead]

My broody hatched three little adopted babies last weekend. Here is what I know.

Two of them hatched from cream legbar eggs. Dad is either a black australorp, white wyandotte, or RIR.

The third came out of a light brown egg that was either from a white wyandotte or a RIR. Baby daddy options are: RIR, black australorp, or white wyandotte.

So what mixes am I looking at here? I’m confused about how similar chick 3 is to the first two when I know it doesn’t have a cream legbar parent.

 

[The Moonshiner]

You can cross off the black australorp. No offspring from it would be chipmunk striped.
Idk what the white Wyandotte is carrying under the white but if a Wyandotte is the parent the chick should have a rose type comb. That's unless the Wyandotte has a single comb or carries a gene for it.
I'm going with RIR all the way around.

 

[GirlsHuntToo]

Rhode Island red Brown leghorn mix