Nikon CoolPix P510
References:
Chilton, Glen, M. C. Baker, C. D. Barrentine and M. A. Cunningham. (1995). White-crowned Sparrow (Zonotrichia leucophrys), The Birds of North America (P. G. Rodewald, Ed.). Ithaca: Cornell Lab of Ornithology; Retrieved from the Birds of North America: https://birdsna.org/Species-Account/bna/species/whcspa
Byers, C., J. Curson, and U. Olsson. 1995. Sparrows and Buntings: A Guide to the Sparrows and Buntings of North America and the World. Houghton Mifflin, Boston.
Rising, J. (2017). White-crowned Sparrow (Zonotrichia leucophrys). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from http://www.hbw.com/node/61912 on 18 April 2017).