https://www.bto.org/our-work/science/publications/reports/research-reports/00577-barn-owl-monitoring-programme-report-2000-2009
The BTO Barn Owl Monitoring Programme: final report 2000-2009
The BTO Barn Owl Monitoring Programme: final report 2000-2009
Citation
Dadam, D., Barimore, C.J., Shawyer, C.R. & Leech, D.I. 2011. The BTO Barn Owl Monitoring Programme: final report 2000-2009.