. . . . . . . . . "Sitta carolinensis" . . "Quercus alba" . . "Matt Muir. 2014. Sitta carolinensis perching on Quercus alba. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/693079> 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." .