Understanding variability in spatial and temporal movement patterns within a species is critical for implementing effective conservation strategies. This is especially true for endangered species like the Yuma Ridgway’s rail (Rallus obsoletus yumanensis) – a species dependent on fragmented and dissipating wetland habitat in the U.S. The Lower Colorado River and the Salton Sea both provide critical habitat for Yuma Ridgway’s rails. Between 2016 and 2025, we tagged rails with GPS transmitters during the breeding season at the Salton Sea (n=175) and along the Lower Colorado River (n=128) in California, Arizona, Nevada, and Northern Mexico. We used the GPS data to quantify and compare the home range sizes, seasonal dispersals and migrations, and between-year breeding site fidelity. The propensity to migrate differed, with rails from the Lower Colorado River migrating to Mexico more frequently (~40%) than those from the Salton Sea (~4%). Our results showcase a need for implementing population-specific conservation strategies. Current efforts involve documenting fitness consequences of spatial and temporal movement strategies and examining the environmental and demographic drivers of partial migration in Yuma Ridgway’s rails.