I have looked at other threads about this subject, but would like to see if any other input can be offered. I have 2, 5 week old chicks that have spent the last 5 days in a grow out pen within the main run, in order to let the flocks get to know each other....I also have 4 thirteen week old pullets raised from day olds. The two 5 week olds were purchased when they were already 2 weeks old. Since I have gotten them, they cry at sundown, almost frantic in their behavior. It has happened in the brooder with a red lamp, white lamp, and now outside in their special area. The brooder box had a roost bar that they learned to hop onto, but slept in the corner instead. Their grow out pen, which includes a little run, also has a roost bar that they easily fly on and off of at will, so I know they can reach it. They still sleep in the corner. Anyway, their behavior is still crying and panicked outside as well. I scootch them into the little coop before I shut their pop door, and they too, have flown at the windows. It does stop after about 20 minutes or so and they are fine all other times. I have tried waiting until dark and placed them on the roost bar, but they won't stay there. So.....just wait it out, or any other suggestions?? I plan on releasing them to the main flock at about 8 weeks or so of age...they need more size on them so that will be what really determines when they can be with the big girls. I am assuming, the big girls will show them the way...no? Yes? Thanks for the help! I don't want the neighbors upset with the "noise"!