I have a flock of 9....they are about a year old. I got them when they were about 6 wks old. We decided to expand our flock and went to the local feed store and bought 8 babies...they said maybe 2-3 days old. I've had them about a week and can already tell the difference in them even though they all look alike. Wondering if their memory is good as chicks because one of them jumps on my hand every time I go to water or feed them. Like it is almost a game....it will jump on my hand, then my lower arm, then jump down flapping its tiny wings...run around the pen...then do it all over again....every day.... but to no one else. Even if someone new is in the room, it just stares at them but will get on my hand and perch. It's so funny and cute but is this memory? Hoping if its a roo it will be better than the one I have now that attacks me daily...hahaha