. . . . . . . . . "Pituophis deppei" . . "Otospermophilus variegatus" . . "Cristian Olvera. 2014. Pituophis deppei depredando Otospermophilus variegatus. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/9422663> 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." .