. . . . . . . . . "Circus hudsonius" . . "Fulica americana" . . "asemerdj. 2016. Circus hudsonius interaction->preyed on Fulica americana. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/2640657> 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." .