In this episode we explore the role of blue mussels in the ecology of the coast, particularly as a food source for shorebirds migrating south. Blue mussels have been declining for decades, possibly due to invasive crab predation. Sara speaks to Callie Bianchi, a local resident who helped the NSRWA test the effect of mussel size on green crab predation efficiency, and Gina Purtell, who works with shorebirds at MassAudubon.