The word "sterna bird-genus" refers to a specific group of birds known as the terns. These beautiful creatures are characterized by their slender bodies, long wings, and forked tails. They are expert fliers and can be found near bodies of water across the globe. There are several synonyms for the term "sterna bird-genus" such as "terns," "sea swallows," or "turnstones." These words are often used interchangeably to describe these elegant avian species. Whether you prefer to call them terns, sea swallows, or turnstones, one thing is for certain - the sterna bird-genus is a captivating group of birds that never fail to impress with their aerial acrobatics and graceful presence.