The datasets stored in this folder summarize reproductive data for Brown Pelicans nesting on Gaillard and Cat Islands, Alabama, in 2017 and 2018. Data include nest and nestling survival, nest site characteristics, environmental covariates, and temperatures recorded inside nests. The datasets and FGDC-compliant metadata are available as .zip files. Dataset "Reproductive Physiology of Brown Pelican Along the Coast of Alabama, 2017-2018_Nest monitoring" provides data on the physiology of reproduction collected at Brown Pelican breeding colonies in coastal Alabama, 2017-2018, and includes nest and nestling survival, nest site characteristics, and environmental covariates. Dataset "Reproductive Physiology of Brown Pelican Along the Coast of Alabama, 2017-2018_Nest monitoring-temperature " provides data on the physiology of reproduction collected at Brown Pelican breeding colonies in coastal Alabama, 2017-2018, and includes nest and nestling survival, nest site characteristics, and environmental covariates (including temperature measured inside the nest).