bcm sexing

[dwlacy]

going by the drawing, though it's for chocins & bantams, it seems to apply to these 2 week old blue copper marans....chicks #1 & #3 are cockerels and the other 3 chicks are pullets?

it that correct?

 

[aart]

Wait a couple-few weeks and the combs and wattles will tell the tale on the males.

 

[oldhenlikesdogs]

Cochins are one breed you can often sex by feather development. I don't believe marans can be. I agree, wait to see if any get pink combs by 5-6 weeks.

 

[Pretty Birds]

The one in your second to last picture looks like a cockerel due to the red comb and wattles at this young age. I would wait a few more weeks to determine the sex of the others.