What age do the combs start to turn red, Cochins and seremas

[wannabchick]

I have 4 week olds

Will their combs start to turn more red if their boys and what age do Cochins and seremas usually start to show red on their combs

Thank u

 

[wannabchick]

Anyone have cochins

Wink wink

 

[GardeNerd]

6 weeks is typical for Cochin cockerels to turn red and larger in the comb.