My chicks are 2 weeks old. Today, one of them decided she wanted to fly out of the brooder. The brooder stands about 18 inches high (its a 50 gal tote that gives them plenty of room but could obviously be taller). I put the lid on (we cut out 90% of it and used hardware cloth to cover) but I don't know if I need to move them to something taller? I don't really have anything to move them to except their coop but it is still too early. Is it hurting anyone if they have the lid on? This might sound silly but I don't want to affect their growth or anything by preventing them from spreading their wings.