Are these all boys????

[J-Habs]

I hatched chicks from my Welbar hen and my Olive Egger rooster, and noticed all but 1 have some kind of spot on the back of their heads. Rooster has zero barring in his genes, but obviously the Welbar does. Sone have large spots, some have small ones.

 

[JedJackson]

Yes, the head spots indicate males in this case.