I agree, the chickens are gonna need more space. Especially the jersey giantHi Sylviathecochin had a great response . just make your run secure and don't worry about the automatic door as long as it opens into the Run. now regarding the run. it's too small. you need 10 square feet per bird .okay you got 10 birds,so a hundred square feet . right now you have 64 so you need to add a little bit more length to your run.
Best,
Karen