. . . . . . . . . "Passerella iliaca" . . "Zonotrichia leucophrys" . . "Marie Cerda. 2014. Passerella iliaca other species in group Zonotrichia leucophrys. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/581630> 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." .