Columba palumbus

BirdLife International. 2004. Birds in Europe: population estimates, trends and conservation status. BirdLife International, Cambridge, U.K.

del Hoyo, J.; Elliott, A.; Sargatal, J. 1997. Handbook of the Birds of the World, vol. 4: Sandgrouse to Cuckoos. Lynx Edicions, Barcelona, Spain.

Fuller, E. 2000. Extinct birds. Oxford University Press, Oxford.

IUCN. 2012. IUCN Red List of Threatened Species (ver. 2012.1). Available at: http://www.iucnredlist.org. (Accessed: 19 June 2012).

Tryjanowski, P.; Kuzniak, S.; Sparks, T. H. 2002. Earlier arrival of some farmland migrants in western Poland. Ibis 144: 62-68.

Tryjanowski, P.; Kuzniak, S.; Sparks, T. H. 2005. What affects the magnitude of change in first arrival dates of migrant birds? Journal of Ornithology 146: 200-205.

Vahatalo, A. V.; Rainio, K.; Lehikoinen, A.; Lehikoinen, E. 2004. Spring arrival of birds depends on the North Atlantic Oscillation. Journal of Avian Biology 35: 210-216.

Zalakevicius, M.; Bartkeviciene, G.; Raudonikis, L.; Janulaitis, J. 2006. Spring arrival response to climate change in birds: a case study from eastern Europe. Journal of Ornithology 147: 326-343.