@techreport{Zehtindjiev-2022-1878693,
  author = {Zehtindjiev, P and Whitfield, P},
  title = {Monitoring of Spring Bird Migration in the Integrated System for Protection of Birds 2022},
  institution = {Bulgarian Academy of Sciences},
  year = {2022},
  month = {jun},
  address = {Sofia. Bulgaria},
  keywords = {Wind Energy, Land-Based Wind, Collision, Displacement, Birds, Waterfowl},
}