The newest upgrade to our chicken run is a motorized door. I used a 12 volt, 12 inch linear actuator, a DC converter, and a controller with remote. The door itself is made from Hardiebacker. It'll eventually get hooked up to Smartthings so that it's automatic at sunrise and after sunset, but the current remote works from inside the house. It takes about a minute for it to open or close fully.
We had two chickens get killed in the past month from either a racoon or cat (both have shown up in the middle of the night on the game camera).
