We have 12 chickens. One is 18 weeks and the rest are 9 weeks. We moved them to the coop approximately 3 weeks ago and we have an automatic coop door that closes at sunset. We did the whole lock them in for a few days but they are super inconsistent about going in at night. Some will but others won’t. However, two nights this week we were gone and got home way past sunset and found all twelve had gone in both nights (I was sure I would be carrying them in). The very next night when we were home 5 didn’t go in. Wondering why they all might have gone in when we were gone but not other nights?