Lake Champlain is home to hundreds of bird species that depend on its islands, wetlands, bottomland forests, and nearby fields for everything from food to nesting habitat. Within this diverse ecosystem there are a few truly unique locations designated as “Important Bird Areas” or IBA’s. The National Audubon Society's Important Bird Area program is part of a global effort to identify critical sites for birds across the planet. One of these sites encompasses 4 islands in northeastern Lake Champlain that are used by common terns for nesting. These islands are home to the largest inland population of terns in New England. A tern research project paid for in part by the Vermont Non-game Wildlife Fund is the focus of this segment, which was produced by Audubon Vermont and Peregrine Productions.