Seasonality datasets

The filtered dataset used in this study includes occurrence records of four South American thrush species (Turdus amaurochalinus, T. chiguanco, T. falcklandii, and T. rufiventris) collected from eBird between 2003 and 2023. These datasets have been processed to remove duplicates, ensure spatial and temporal consistency, and exclude incomplete or unreliable records. The final dataset represents a comprehensive and filtered selection of occurrence data used to analyze seasonal range expansions and habitat use.