Data of trace elements of feathers, sediment and salt from samples collected between July and August 2014, during the ringing operations of three breeding colonies of Greather flamingo, Phoenicopterus roseus, of the western Mediterranean: Aigues-Mortes (AIG), southern France (N 43° 33’, E 4° 11’); Fuente de Piedra (FDP), southern Spain (37° 06’N, 04° 45’W) and the heavily polluted Odiel marshes (ODI), southern Spain (37º 17′ N, 06º 55′ W).