Pete Marra is a conservation scientist at the Smithsonian National Zoo and Conservation Biology Institute. He studies the ecology, migratory patterns and decline of birds across the Western Hemisphere. Pete also heads the Smithsonian Migratory Bird Center (SMBC).
Mike Hallworth is a postdoctoral fellow at the Smithsonian Migratory Bird Center (SMBC). He studies migratory connectivity, the connection between breeding and non-breeding areas of migratory organisms and population ecology of migratory songbirds.