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Morrison, Scott A.; Bolger, Douglas T.; Sillett, Scott T. (2004). "Annual survivorship of the sedentary rufous-crowned sparrow (Aimophila ruficeps): no detectable effects of edge or rainfall in southern California". The Auk. 121 (3): 904–916. doi:10.1642/0004-8038(2004)121[0904:ASOTSR]2.0.CO;2. S2CID85730625.
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web.archive.org
Gough, Gregory (28 December 2000). "Rufous-crowned sparrow Aimophila ruficeps". Patuxent Bird Identification InfoCenter. USGS Patuxent Wildlife Research Center. Archived from the original on 24 September 2006. Retrieved 18 January 2007.
Donlan, C.J.; Tershy, B.R.; Keitt, B.S.; Wood, B.; Sanchez, J.A.; Weinstein, A.; Croll, D.A.; Alguilar, J.L. (2000). Browne, D.H.; Chaney, H.; Mitchell, K. (eds.). Island conservation action in northwest Mexico(PDF). Proceedings of the Fifth California Islands Symposium. Santa Barbara, California, USA: Santa Barbara Museum of Natural History. pp. 330–338. Archived from the original(PDF) on 28 November 2010. Retrieved 13 February 2009.