By Anne Lichtenwalner, DVM Ph.D., University of Maine Cooperative Extension For information about UMaine Extension programs and resources, visit extension.umaine.edu. Find more of our publications and books at extension.umaine.edu/publications/. Syngamus tracheae, or the “gapeworm,” is one of several worms that can live in your chicken’s respiratory tract. This worm lives in the trachea, and causes