Abstract: An agitator system for stimulating poultry moves birds toward feeding apparatus. The system is designed for easy roof mounting within conventional poultry houses of the type having a plurality of interior, parallel spaced apart lanes. One or more modules comprises individual trolleys which travel in parallel up and down aisles within the house in response to a cable. A frame suspends a track system which supports the trolleys. Each trolley suspend a curtain which rides above the floor of the house. A rigid frame secures an electric drive motor which activates a pulley and cable system for module movement. Each module track comprises an elongated pipe which extends above the isles. Each trolley is suspended on the pipe by wheels riding on the pipe. An alternative track includes a pipe having a lower guide bar. Guide rollers which roll along either side of the guide bar for stabilization. Depending on which side of the cable is tensioned, the trolley will be drawn forward or backward.