@article{Tryjanowski:2015,
  author  = "P. Tryjanowski and F. Morelli",
  title   = "Presence of Cuckoo reliably indicates high bird diversity: A case study in a farmland area",
  journal = "Ecological Indicators",
  volume  = "Vol. 55",
  pages   = "52--58",
  year    = "2015",
}