Help with gender

[BD17]

Any help with the gender of my newest chicks would be appreciated! They are 4 weeks old, the black ones are barnyard mixes I hatched at home.

We are thinking the black and white one with the most white on its head is a roo.

 

[Mckennas poultry]

All hens except for the one with white on its head

 

[BD17]

All hens except for the one with white on its head

Thank you that was our thoughts!

 

[Crazy for Chickens!]

They are too young still. Please post pics of their combs at six weeks.