Moeras-sterretjies: Verskil tussen weergawes

Voëls in die genus is sterk aan soetwatermoerasse gebonde. Tradisioneel is drie spesies as moeras-sterretjies beskou, maar onlangse navorsing het aangetoon dat die [[Nieu-SeelandseSeeland]]se sterretjies by die genus ingedeel moet word.<ref name = "Bridge">Bridge, E.S.; Jones, A.W. & Baker, A.J. (2005): A phylogenetic framework for the terns (Sternini) inferred from mtDNA sequences: implications for taxonomy and plumage evolution. ''Molecular Phylogenetics and Evolution'' '''35'''(2): 459-469. {{doi|10.1016/j.ympev.2004.12.010}}</ref>