I had another question too can I mix breeds of chickens in the brooder? Because I am going to get 3 speckled sussex 2 cochins 1 male cochin 3 wyandottes and 1 blue bantam silkie.
Standard or bantam Cochins? Just the 1 Silkie? You've considered the possibility that the Silkie may get bullied by the bigger birds and may end up needing a separate coop/run and flock?