@article{Zapata-2012-3937,
  author = {Zapata, J},
  title = {Overview of raptor monitoring in Spain},
  journal = {Acrocephalus},
  year = {2012},
  month = {jan},
  volume = {33},
  number = {154/155},
  pages = {321--323},
  url = {http://www.eurapmon.net/sites/default/files/eurapmon_acrocephalus_027_spain.pdf},
  keywords = {Birds, Raptors},
}