Data for: Non-lethal sampling on avian indicators reveals reliable geographic signatures despite highly dynamic patterns of mercury exposure in a large wetland.

Mercury concentrations in great egret albumen and nestling blood and feathers from several breeding colonies in the Florida Everglades between 2015 and 2017.

With the exception of correlation among [Hg] in blood samples of the same individual, only blood [Hg] from first sample was included in analyses and the other sampling occasions were censored.