Adaptation of Eurasian Magpie (Pica pica) to Urban Environments: Population Dynamics and Habitat Preferences in Zielona Góra (Poland) over 23 Years

Urban Farm DB summary

This study investigated changes in the population size, distribution, and habitat preferences of the Eurasian magpie in Zielona Góra, Poland, over 23 years. A 2022 survey identified 953 magpie pairs, with an average density of 8.8 pairs/km2 across administrative boundaries (excluding forests) and 27.7 pairs/km2 in strictly urbanized zones. The highest densities were observed in the old town (36.5 pairs/km2) and residential blocks (34.5 pairs/km2), while peripheral areas showed significantly lower densities. Nests were predominantly located in coniferous trees, especially spruces, at a mean height of 11.8 m. Proximity to trash bins, water sources, and tall trees were significant predictors of nest density and placement.