Wheaton Marans 1 Week - Can you tell gender??

[carolynb]

I have two Wheaton Marans hatched within hours of each other. One has significantly more feathers than the other. Does anyone know if this is a way to tell the gender in Wheaton Marans? Just curious. Thanks!

 

[Katy]

The little roos wing feather come in very dark brown/black while the little pullets are a reddish brown.