They have a lot of shade from the trees, and I keep the big coop door open day and night (don't have a problem with predators, just neighbor's dogs getting loose). I also put out ice bottles for the flock to lay against if they get hot (also do this for my rabbit).
I would lock them up at night if they don't have a secure run, it's only a matter of time before a predator comes along. And loose dogs are a big problem. You can add little windows to your coop with welded wire screwed over them. Don't use chicken wire a coon can chew through it and don't use staples they can push them out. Just trying to help hate for something to get in one night. You would sleep better

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I scare myself thinking I'll forget. If I have to have my daughters do it I'll call them and remind them when it's almost time and then insist I get a call when they are all in safe. Good thing their cell phones are attached to their hips.
I'm in Hermiston and have some pretty little seramas that need homes. 2 roosters and a trio (a roo and 2 hens). I'm also looking for silkie laying hens if anyone has any between Pendleton and the Seaside, OR area. Pictures of the seramas are below.