1. Angal’t, V. (1989). Ekologiya sizogo golubya v usloviyahk goroda Permi. In Gnezdovaya zhizn’ ptits (pp. 48–51). English edition: Angal’t, V. (1989). Ecology of a gray dove in the conditions of the city of Perm. In Nesting life of birds (pp. 48–51)
2. Bingman, V., & Jones, T. J. (1994). Sun compass-based learning impaired in homing pigeons with hippocampal lesions. The Journal of Neuroscience, 12, 6687–6694. Retrieved from https://www.jneurosci.org/content/jneuro/14/11/6687.full.pdf
3. Blaisdell, A. P., & Cook, R. G. (2005). Integration of spatial maps in pigeons. Animal Cognition, 8, 7–16. Retrieved from https://escholarship.org/content/qt0ns003xd/qt0ns003xd.pdf.
4. Blough, P. M. (1984). Visual search in pigeons: Effects of memory set size and display variables, Perception & Psychophysics, 35, 344–352. Retrieved from https://link.springer.com/content/pdf/10.3758/BF03206338.pdf
5. Blough, P. M. (2001). Cognitive strategies and foraging in pigeons. In R. G. Cook (Ed.), Avian visual cognition. Comparative Cognition Press – online. Retrieved from http://www.pigeon.psy.tufts.edu/avc/pblough/default.htm