. . . . . . . . . "Chroicocephalus philadelphia" . . "Salmonidae" . . "Arnulfo Moreno. 2010. Chroicocephalus philadelphia depredando Salmonidae. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/464004> 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." .