Food production
How to Raise Nesting Hens in Backyard Chicken Coops - a Reliable Source of Cheap Organic Eggs
...non-toxic materials
Since chickens will inevitably peck at and ingest materials, the use of non-toxic, durable, and low-embodied-carbon materials is paramount.
Siding and framing: Use untreated lumber and don't use any interior paint. For exterior durability, consider low-VOC paints or natural finishes.
Flooring: The ...