Figure 4

Liver concentration of Al, Fe, Co, Cu, Zn and Cd (mg/kg of dry mass) in pooled prions (n = 50), including both fairy (n = 25) and slender-billed prions (n = 25) that had not ingested (n = 30, left bars) or ingested (n = 20, right bars) plastic at the time of death in emaciated condition during a “seabird wreck” in New Zealand, August 2016.