I put this under raising chicks and then saw this section! I raise Cornish Giant Broilers, but this year I am also doing Cornish Game Hens. So, I need to be able to sex these chicks by 4-5 weeks to pick out just hens for the Cornish Game Hens. I cant remember from last year if they show wattles and combs by 4-5 weeks? Any other way of telling them apart? Thanks!