The simple stages of Chicken math = if you get a roo(rooster) replace it with two (hens). Bantams count as 1/2 chicken, free birds don't count at all. If a chicken breed comes in many varieties, you should get all of them to try them out.
As you progress you will come up with your own chicken math calculations and very likely share them with us.
As you progress you will come up with your own chicken math calculations and very likely share them with us.