Different species of terrestrial
and aquatic birds from the same area acquire and deposit POPs in different
proportions and quantities in their eggs. Trophic levels and habitat explains
the overall patterns, but detailed differences were found, some of which we are
unable to explain. Based on POPs residues in terrestrial, wetland, and aquatic
bird eggs, different POPs classes behave differently in a shared large inland
industrial area, complicating deductions about POPs and associated risks based on
one or few species.