FLATBED UTILITY TRAILER - for 30 birds- Field in summer, and close to house in winter. A Instant shade underneath. Nesting boxes at the back, and a BIG cleanout/entrance door at the front with a screen door for summer. CLEAR roof panels??? Removable steps to access inside. Maybe a window in the front as well for more light. Eves trough to catch rainwater in barrel. Maybe a solar panel light? Run extension cord to heat the water......