. . . . . . . . . "Circus hudsonius" . . "Microtus californicus" . . "sea-kangaroo. 2012. Circus hudsonius feeding on Microtus californicus. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/61932> 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." .