So my chicks are I think 3-4 weeks old they have started trying to jump out of the tote I have them in and sometimes one will hit the lamp, they also open their wings like they want to fly. They do it all together most of the time. I have 6 chicks so once one starts it gets the others to start. Is this normal? Should I be worried that one day I'll come home and one or more will be out? How can I get them to stop?