The article discusses findings of a study to survey and evaluate the population of tern species on roosting sites in ParaÍba, Brazil. It notes the observation of roosts for a total of 548 birds consisting of 371 Common Terns, and 177 Cabot's Terns. Researchers confirm that ParaÍba only serves as a stopover site for migrating Common Terns, while Cabot's Terns do not have breeding colonies in the area.