author  = "M. Kasprzak and M. Bocheński and P. Kamiński and L. Jerzak",
  title     = "The impact of ad libitum feeding upon body mass and red blood cell parameters of Feral Pigeon Columba livia f. urbana",
  pages     = "471--477",
  year      = "2011",
  booktitle = "Urban fauna : studies of animal biology, ecology and conservation in european cities, ISBN: 9788375900855",
  editor    = "ed. P. Indykiewicz, L. Jerzak, J. Böhner, B. Kavanagh",
  publisher = "University of Technology and Life Sciences",
  address   = "Bydgoszcz",