Hi All! I have a coop with a fully enclosed run. My chicks are about 12 weeks old and have been going in and out of the coop for the past 4-5 weeks. I open the coop door in the morning and they go out then i shut the coop door around 830pm. They have never had a problem coming out or putting themselves to bed. Last night by 9pm 5 out of 6 were not in the coop and i had to put them in. Then this morning they would not come out either. I slowly enticed them out with some food then shut the coop door so they couldnt go back in. Any ideas as to what is going on? I know there are predators out there which is why the coop and run are fully enclosed but i haven't seen any during the day and i make sure to shut the coop door every night for extra security.