I have 5, 1yr olds, 21 7-wk olds, and 4, 4-wk olds, and 8 2-week olds. I have to say the 21 were overwhelming to me. I just started getting chickens last year..started with six, lost one. I love the five. I spent a lot of time with them. Even though the 20 are multiple breeds, I can't tell them...