. . . . . . . . . "Accipiter nisus" . . "Passeriformes" . . "Xavier. 2017. Accipiter nisus eating Passeriformes. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/7583320> 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." .