Hey everyone. I'm growing out some Wheaten and Blue Wheaten. As chicks they all seem to have color in the wings. They are almost 3 weeks old now. My question is , I'm starting to see some blue feathers and some without. What is my window for marking/banding my Wheatens from Blue Wheatens. The reason I'm asking is the hens look soooo much alike once they are fully grown. How long is my window for seeing the blue feathers on the females. And when they are full size will i be able to tell the Blue Wheaten hens from my Wheaten ones, or should i be separating them now.