Integrated Waterbird Monitoring and Management (IWMM)is a national effort to monitor waterbirds and provide decision support for their habitat management. The program is housed within the Inventory and Monitoring branch of the Natural Resource Program Center at Ft. Collins, CO, which provides interdisciplinary science for the planning and management decisions of the National Wildlife Refuge System. Data is housed in the Midwest node of the Avian Knowledge Network. More information about IWMM including protocol, data management, and modeling can be found at https://iwmmprogram.org.