Census and Control of Columba livia var. domestica in Genoa, Italy: Trends in the Higher-Central District (2010–2017)
DOI:
https://doi.org/10.12834/VetIt.3739.35888.2Keywords:
Columba livia var. domestica, pigeon management, ANOVA, urban ecology, Nicarbazin, population controlAbstract
Urban pigeon populations pose significant challenges in cities worldwide, contributing to structural damage, health concerns, and environmental imbalances. Since 2005, the Municipality of Genoa has implemented a targeted pigeon control programme utilising Nicarbazin, a sterilising agent that inhibits egg fertilisation. This study assesses the effectiveness of the sterilisation strategy in the Circonvallazione a Monte district from 2010 to 2017, analysing population trends and behavioural responses across various feeding points. Using a combination of statistical methods, including Duncan’s test, ANOVA, and time series analysis, we identify significant declines in pigeon numbers and the emergence of distinct population dynamic patterns. Results indicate that while pharmacological sterilisation effectively reduces populations, its success varies depending on local environmental factors, nesting availability, and unauthorised feeding. The study suggests that an integrated approach, combining reproductive control with habitat modification and public awareness initiatives, is essential for long-term pigeon population management. Our findings contribute to the growing body of research on humane and sustainable urban wildlife control.References
Albonetti, P., Marletta, A., Repetto, I., & Sasso, E. A. (2015). Efficacy of nicarbazin (Ovistop®) in the containment and reduction of the populations of feral pigeons (Columba livia var. domestica) in the city of Genoa, Italy: a retrospective evaluation. Veterinaria italiana, 51(1), 63–72. https://doi.org/10.12834/VetIt.337.1448.3
Albonetti, P.P., Chiaranz, G., Ferretti, S., Milia, L., Repetto, I., & De Massis F. (2025). Manuale per la gestione delle popolazioni di colombi in ambito urbano. Veterinaria Italiana, Monografia 32.
Avery, M.L., Keacher, K.L., & Tillman, E.A. (2008). Nicarbazin bait reduces reproduction by pigeons (Columba livia). Wildlife Research, 35(1), 80-85.
Bibby, C., Burgess, N., Hill, D., & Mustoe, S. (1992). Bird Census Techniques. 2nd edition. Academic Press Elsevier, 91-112.
Dobeic, M., Pintarič, Š., Vlahović, K. & Dovč, A. (2011). Feral pigeon (Columba livia) population management in Ljubljana. Veterinary Archives, 81(2), 285-298.
Fitzwater, W.D. (1988). Solution to urban bird problems. Proceedings of the Thirteenth Vertebrate Pest Conference, 13, 254-259.
Giunchi, D., Albores-Barajas, Y.V., Baldaccini, N.E., Vanni, L. & Soldatini, C. (2012). Feral pigeons: problems, dynamics and control methods. Integrated Pest Management and Pest Control. Current and Future Tactics. InTechOpen, London, 215-240.
Haag-Wackernagel, D. (2005). Parasites from feral pigeons as a health hazard for humans. Annals of Applied Biology, 147(2), 203-210.
Haag-Wackernagel, D., & Moch, H. (2004). Health hazards posed by feral pigeons. The Journal of infection, 48(4), 307–313. https://doi.org/10.1016/j.jinf.2003.11.001.
Hui, C. (2006). Carrying capacity, population equilibrium, and environment’s maximal load. Ecological Modelling, 192, 317-320.
Jerolmack, C. (2008). How pigeons became rats: The cultural-spatial logic of problem animals. Social Problems, 55(1), 72-94.
Johnston, R.F., & Janiga, M. (1995). Feral pigeons. Vol. 4. Oxford University Press, USA.
Senar, J. C., Montalvo, T., Pascual, J., Peracho, V. (2017). Reducing the availability of food to control feral pigeons: changes in population size and composition. Pest management science, 73(2), 313-317.