Marsh tern

The name marsh tern refers to terns of the genus Chlidonias, which are typically found in freshwater marshes, rather than coastal locations.

There are four species:
 * Black Tern, Chlidonias niger
 * White-winged Tern or White-winged Black Tern, Chlidonias leucopterus
 * Whiskered Tern, Chlidonias hybridus
 * The Black-fronted Tern, Chlidonias albostriatus (formerly Sterna albostriata) is now also recognized to belong to this genus (Bridge et al., 2005).

The Black-bellied Tern (Sterna acuticauda) and the White-cheeked Tern (Sterna repressa) might also be placed in Chlidonias.