. . . . . . . . . "Accipiter cooperii" . . "Circus hudsonius" . . "Kim Moore. 2017. Accipiter cooperii associated species with names lookup Circus hudsonius. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/9287469> 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." .