A study investigating the occurrence and profiles of select trace metal concentrations, including those of lead (Pb), cadmium (Cd), cobalt (Co), chromium (Cr), copper (Cu), manganese (Mn), nickel (Ni) and zinc (Zn), over seven breeding seasons (spanning from 2007 to 2014), in blood samples from Scopoli's shearwater (Calonectris diomedea) in the pristine environment of the Strofades island complex (located in the Eastern Ionian Sea basin).