A mobile solar-powered chicken coop (2 photos + 3 videos)
American farmers have been using automatic mobile chicken coops for several years. This is what they look like. 
The coop can hold 6,000 birds and moves around the pasture itself, providing the birds with access to fresh grass and insects.
That very moment when chickens live better than some people
Pasturebird farms have been successfully using such chicken coops for several years.
