1. Azevedo, T.R., Schiller, A., 1991. Notes on the diet and the ingestion of plastic material by the Magellanic penguin Spheniscus magellanicus on Santa Catarina Island and mainland (Brazil). Research Report, University of Liège, Institution of Zoologie, Belgium. Rapport 457, 1–8.
2. Marine birds and plastic pollution;Azzarello;Marine Ecology Progress Series,1987
3. Cephalopods in the diet of Magellanic penguins Spheniscus magellanicus found on the coast of Brazil;Baldassin;Marine Ornithology,2010
4. Occurrence of plastic particles in seabirds from the Eastern North Pacific;Blight;Marine Pollution Bulletin,1997
5. Penguins as marine sentinels;Boersma;Bioscience,2008