Hello We have 7 chickens: 5 cornish crosses and 2 RIR's(although I am not very sure if they are RIR's......I hope they are....). We decided to get rid of the Cornishes because they were eating too much and we're low on money. We got rid of 1 Cornish(we ate it). One quickly died of a dog bite(poor guy. He was quite sweet), and 2 mysteriously disappeared. They probably got scared that they might be slaughtered next and ran away, or got eaten by a cat, or mistaken by our neighbor as a wild chicken and ate them(I would be frustrated if they did!). What's left is a Cornish crossed with a Barred Rock(she is very sweet) and the 2 young RIR's. 2 days later, the Cornish disappeared. I felt very sorry. I also felt some regret because I didn't watch over them during their free range time and I was too busy with my aquarium. Now I'm going to get focused on caring for my chickens and take care of the responsibility I've taken. Whoa! I had a lot to express over there. Sorry for the long post! Well, let's get to the point. On what age can chickens mate and have little chickies? There's only 2 of them left(one is male and the other is female), and buying chicks is waaay too expensive. They're both 3 months old. On what age will they mate? Thanks in advance!