. . . . . . . . . "Podiceps cristatus" . . "Anser anser" . . "Thorsten Usee. 2018. Podiceps cristatus associated species with names lookup Anser anser. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/10225293> 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." .