Tarn

Terns; Temporal range: Early Miocene tae present
	Greater crested tern in first-year plumage
Scientific classification
Kinrick:	Animalia
Phylum:	Chordata
Cless:	Aves
Order:	Charadriiformes
Faimily:	Laridae
Subfaimily:	Sterninae
Genera
	Anous; Procelsterna; Gygis; Onychoprion; Sternula; Phaetusa; Hydroprogne; Gelochelidon; Larosterna; Chlidonias; Thalasseus; Sterna;

Tarns is birds in the faimily Sternidae. They are maist sib to maws (faimily Laridae).