My teensy little baby chicks in my avatar, that I only got three weeks ago, now look like chickens! I even heard one "bok" today instead of chirping. They have gotten so much heavier that they broke the roost I made them! Wow, that was fast. I think I still have months to wait for eggs, but it seems like they just went "poof" overnight! I guess the 7 to 8 weeks is the magic growth spurt time.