Older female reproductive success for tree swallows near Ithaca, New York in the years 2002 through 2016

These data were the basis of results in the paper by Winkler, Hallinger et al. in Ecology in 2020 entitled "Full lifetime perspectives on the costs and benefits of lay date variation in tree swallows." The file contains the lay date, clutch size, and fledgling production for every female in the Ithaca population that met the screening criteria discussed in the text and was breeding beyond her first breeding season.