As you may know Cream Legbars are an autosexing breed. Like sex-linked hybrids, you should be able to sex at hatched based on coloration. But not everything is black and white.
Males are supposed to have a light spot on their head. Females have clearly defined chipmunk strips on their backs and eye stripes, while males have fuzzier striping. Boys are generally lighter than girls.
I have a chick that has no head spot, but has fuzzy stripes. I'm pretty sure he is a boy, but I hope some Legbar experts can chime in. (I am going to post a link to this thread on the CL thread).
Bottom chick is clearly a girl, top chick is the question mark.
Here he(?) is from the side so you can see the eye stripes.
Cream Legbars * "Midnight" Black Stars (Black Australorp x Barred Rock) * Coming in fall: Bielefelders
Facebook: https://www.facebook.com/SDBackyardChicks (not in LA anymore)
eBay: peterbb (Often CL hatching egg auctions, but direct sales also welcome)