Link to English Wikipedia entry: Common Tern
Link to German Wikipedia: Fluss-Seeschwalbe
Link to French Wikipedia: Sterne pierregarin
Link to EOL.org: Sterna hirundo
Link to iNaturalist.org: Sterna hirundo
Links to my pictures: Common Tern
Binomial Links for Sterna hirundo on www.guenther-eichhorn.com
Dr. Günther Eichhorn Travel Website
Soaring website