This morning at just after midnight Engine 502 and Rescue 50 were dispatched as part of the 1st alarm assignment for a reported barn fire at 331 Walnut Run Rd in Strasburg Township assisting Refton. First arriving units reported a large chicken house fully involved in fire with exposures. Engine 502 arrived and pulled multiple hand lines to protect exposures and attempt to stop the fire spread. Unfortunately the main building was a loss and nearly 20,000 chickens perished in the blaze. Both the engine and rescue remained on scene until 0500 hours assisting other units on scene. Chief 59 (Hicks) had command of the incident. Thanks to West Earl Tanker 29 for standing by in our quarters while we were on this fire.