<i><a href="//commons.wikimedia.org/wiki/Chlidonias_niger" title="Chlidonias niger">Chlidonias niger</a></i> or Black Tern
USGov
<a rel="nofollow" class="external text" href="https://www.fws.gov/mountain-prairie/pfw/montana/images/img0017.jpg">US Fish and Wildlife Service, Mountain-Prairie Region</a>