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

Olaf Ciebiera,P. Czechowski,Federico Morelli,S. Rubacha,L. Jerzak

Published 2025 in Animals

ABSTRACT

Simple Summary This study examines the population dynamics and habitat preferences of the Eurasian magpie Pica pica in Zielona Góra over 23 years, highlighting the impact of urbanisation. In 2022, 953 magpie pairs were recorded, with an average density of 8.8 pairs/km2 across the current administrative boundaries of Zielona Góra (without forests), and 27.7 pairs/km2 in strictly urbanised zones. The highest densities were in the old town (36.5 pairs/km2) and residential blocks (34.5 pairs/km2), while the peripheral areas had lower densities. The nests were mostly in coniferous trees, especially spruces, indicating a shift from poplars. The average nest height was 11.8 m, varying by habitat, with taller nests in the old town and parks. The key factors influencing nest density and placement included proximity to trash bins, water sources, and tall trees, reflecting the magpie’s adaptability to urban environments and reliance on anthropogenic resources.

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