The Saltmarsh Sparrow (SALS) has often been referred to as the "Canary in the Coal Mine" for rising sea levels due to global warming. It has successfully built nests only an inch above the ground for thousands of years. This species is dependent upon healthy salt marshes on the east coast of the US. Since the 1990s, 75% of the population has been lost. It lives nowhere else in the world, and could become extinct by 2040, due to flooding and habitat loss. Learn more about our project to study this threatened species.