. . . . . . . . . "Hydroprogne caspia" . . "Sterna striata" . . "Steve Attwood. 2013. Hydroprogne caspia associated species with names lookup Sterna striata. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/975962> on 05 Apr 2018." . . . . "http://iNaturalist.org is a place where you can record what you see in nature, meet other nature lovers, and learn about the natural world." .