. . . . . . . . . "Haliaeetus leucocephalus" . . "Larus glaucescens × occidentalis" . . "Mike. 2017. Haliaeetus leucocephalus interaction->preyed on Larus glaucescens × occidentalis. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/4998188> 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." .