In 2010, 550 penguins were found on Brazil's coastline. They were believed to have starved to death.[21] In June 2012, higher numbers were recorded, with 742 Magellanic penguins discovered in a decomposed state on the shores of Brazil. The causes of death were investigated.[22] The birds were young and "natural causes" were assumed.[21] Prior to 2010, only roughly 10 dead penguins would be expected to be found ashore in a typical year.[23]