My first coop here was a truck camper that someone had put on a homemade trailer.The plastic Little Tykes style one work, too, but they get brittle with age. Even new, I wouldn't trust them against a predator with teeth. I've seen some raised up high that keep out most predators, but I really like the look and durability of the wooden ones. Still, some of the plastic ones are REEEEAALLY cute!
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https://www.communitychickens.com/cool-coops-the-cottage-playhouse-coop/
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https://project.theownerbuildernetwork.co/2017/02/02/old-playhouse-turned-chicken-
coop/
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https://nicefamilyhomestead.com/2013/11/13/playhouse-chicken-coop/