Every July, nearly a quarter of a million semipalmated sandpipers stop on the shores of the Bay of Fundy before embarking on a 72-hour journey to the shores of South America. During three weeks in the summer they literally cover New Brunswick’s Fundy shore, feasting on mud shrimp for up to 16 hours a day and doubling their body mass. Rosie Cockshutt works at the Nature Conservancy of Canada’s Johnson’s Mills Interpretive Centre, and joined us in studios to talk about the state of research on these incredible little birds.