. . . . . . . . . "Quercus agrifolia" . . "Sialia mexicana" . . "hikingsandiego. 2017. Quercus agrifolia associated species with names lookup Sialia mexicana. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/8878752> 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." .