Our chickens(8) are about 8 months & been in their coop/run since this summer. We got an automatic door in September & chickens used it great until about a month ago. Recently between 2-6 seem to not come in almost every night & we have to bring them in manually. We are located outside of Seattle area & have had unusually cold weather which seems like they'd have more incentive to go in(heat lamp on), but no. We used to have 2 turkeys with them (raised together) but the turkeys have been gone as of thanksgiving & xmas. We thought the chickens were staying out bc the female turkey was but her disappearance hasn't changed the chickens not coming in. Suggestions? It's getting really old & defeats the purpose of the automatic door. Our run is not as secure as the coop. They don't seem stressed as they're still laying(3-8 eggs/day). Coop is 4x12 (2/3 of a horse stall), so they have plenty of room. Help!!