5 Dollars - Elizabeth II Bermuda Bluebird

The Bermuda Monetary Authority has issued a long-running series of fractional gold pieces tied to endemic and native fauna, a program rooted partly in conservation awareness and partly in the reliable collector demand such themes generate. The Bermuda Bluebird — properly the Eastern Bluebird, established on the island since at least the 17th century — became a focus of active recovery efforts after introduced European starlings and sparrows devastated nesting populations through the mid-20th century. The nest box program that reversed that decline, largely driven by volunteer effort beginning in the 1960s, is one of the more successful avian conservation campaigns in the Atlantic.