Tabla , Island and group Common name, and genus or species pci/g Strontium units Tissue Sr Mg Ca/q Ruddy turnstone Gut 18t1.7 4900+470 3.6 Ruddy turnstone Arenaria interpres Kidney 1.70+0.53 14004460 1.2 Ruddy turnstone Liver 0.74t0.19 2100+ 530 0.35 Arenaria interpres Arenaria interpres - I. od Birds 90 t ENGEBI continued