I am trying to wrap my head around automatic pop doors. I can't seem to decide what is the best choice - light sensor or timer. Since chickens don't wear watches,
I would think a light sensor would be better.
I am also trying to figure out what happens if a chicken gets left outside (in the run) with the door closed.
Any input would be appreciated.

I am also trying to figure out what happens if a chicken gets left outside (in the run) with the door closed.
Any input would be appreciated.