Plum Island is a small island located off the coast of New York, near the town of Southold. It is known for its natural beauty, featuring sandy beaches, salt marshes, and diverse wildlife. The island is part of the Long Island Sound and is accessible by boat. Historically, Plum Island has been home to the Plum Island Animal Disease Research Center, which conducts research on animal diseases. The island is also a designated wildlife refuge, providing habitat for various bird species and other wildlife. Its unique ecosystem makes it an important area for conservation efforts.