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  Population expansion of the Hoopoe Upupa epops in Silesia, SW Poland

  Grzegorz Kopij

  38-40

  02-08-2016

  Published: 2 August 2016

  538

  PDF: 430
• 

  The role of peri-urban wetland and meadow habitats in the protection of trans-Saharan migrant passerine species in a central European city

  Grzegorz Kopij

  47-52

  05-12-2018

  Published: 5 December 2018

  482

  PDF: 405