Brahmas ... looking like boys, any help?

[Relynn]

So, I hatched two blue/gold partridge brahma's, and I bought 2 light brahmas from the local feed store. I think one of the light brahmas may be a boy, and the other may well have Mareck's. She is doing the leg things. I lost a whole flock of birds last spring to what seems to be Mareck's, however they never saw the real flock and only one out of the 5 survived. But this bird is not even if barely 8 weeks, and I didn't have any issues until that last flock. ugh. Anyways, I think this light brahma and my two hatched babies maybe little boys... the hatched ones are the golden ones, and their wings do not reach the end of their bodies. The two dark Brahma babies wings are already to the ends of their bodies. My hatches are just barely 3 weeks old. The dark Brahmas are 1 1/2 weeks old. What do you think?