2.) there are others with far more experience but I find it depends on the breeds. the smaller breeds seem to me to mature faster. If they can crow they can breed (usually) but they can start crowing very young at 3 months and I have adult roosters (my NN) that never crow. I plan on using my roosters for breeding at 6-8 months depending on breeds. I have a lot of AM which are slow to mature and they hardly ever mature before 6-8 months old. My Aloha's started mounting the hens at 3 months but they are not crowing. I know its all confusing but maybe I helped a bit.1)A chicken is a Roo when it has.......
* bigger comb and Wattles
* Spurs on each of their feet
* bigger then a hen of that breed
* pointy Neck or collar feathers
* attitude
* crows (when mature)?
Is there anything else I need to know in determining if I have a pullet or Roo ?
2)When Is A Roo Mature enough to breed?
3)How old Are they when they Crow? (What age range?)