the dark male with a headspot is most likely a single barred male, meaning it only has one copy of the barring gene B/b+ as you can see they are still able to be sexed at hatch.To me they look like males, appears to be head spots. The more yellow chick down may mean they are carrying a wheaten gene, which I would not breed only because its adds to more hatching variables. I only see one female in the group. Hope someone else chimes in for confirmation.
I have been non-stop working on the eb gene while waiting on my Rhodebars to mature.