 Its vast expanses of undeveloped land and low population density (1.31/km2), together with Andros' unique combination of undisturbed environmental features, presents a rare opportunity for environmental preservation.Globally-imperiled pine rocklands are prime habitat for migratory songbirds such as the Kirtland's warbler, one of North America's rarest birds.These forests are abutted by Hardwood forests and expanses of freshwater marshes.