@article{BosBazuinWesterhofTakkeling2021b,
   title     = {De Sperwer Accipiter nisus als broedvogel in de provincie Groningen en in Noord-Drenthe in 2021},
   author    = {Bos, Johan and Bazuin, Erik and Westerhof, Sylvie},
   journal   = {De Takkeling},
   volume    = {29},
   number    = {3},
   pages     = {203--210},
   year      = {2021}
}