Sensitivity of seabird species to plastics as nesting material (Development of a scoring system)

Until now, there are hardly any uniform ways of making a statement as quickly as possible, based on nest observations, as to how heavily a nest or colony is contaminated with plastic waste. Therefore, a scoring system is to be developed which will make it possible to compare the extent to which plastics are used as nesting material between different seabird species. The aim is to categorise the contamination on the basis of visual characteristics so that they can be applied on the basis of photographs and across a wide range of species.