I just rescued a Rhode Island Red chick last Friday. Of course it is much smaller but the wing coloring is the same. And RSL are crossed with a White Rock (or some other type of chicken) but it could be a RSL and just be taking after the daddy or mommy. Sorry not much help but maybe someone may chime in.
Cute and adorable chicks! How do you get such nice pix, I try but they always move to fast for me. lol