Hi everybody, I am making this thread so that when people ask - when is my cockerel going to do his thing? - you can direct them here so they can read when other people's cockerel matured! Please state their breed and age and any additional information (not compulsory) PLEASE READ: - There are many variables that come into the equation. Basing your cockerels maturity on just one persons cannot be accurate as they will have different circumstances. If another older more dominant rooster is in there the cockerel, it will not have a chance to crow or mate so please only post if you don't have another rooster in with it! I start by saying that i have a Blue Australorp cockerel that is now 5 months old (20 weeks) and is yet to mature. He hasn't started crowing and he isn't mating the hens that i know of. Here is a pic @PingoBags 's BLUE AUSTRALORP CROSS is 18 weeks old and as far as the owner is concerned has never crowed or shown interest in the pullets. @BlueBaby 's SPLASH AUSTRALORP started mating his hens at 5 1/2 months of age! He was even covering the older hens. @CTKen 's BROWN LEGHORN started crowing/mating at around 4-5 months old. Didn't cover all his hens until he was 7 months old. @mcclucker 's GOLDEN LACED WYANDOTTE started the occasional crow at 10-11 weeks old. He is now 18 weeks old and is yet to mate the hens (that she knows of).