https://www.bto.org/our-work/science/publications/reports/research-reports/00394-short-eared-owl-survey-and-monitoring-methods
Development of methods for surveying and estimating population size of Short-eared Owls
Development of methods for surveying and estimating population size of Short-eared Owls
Citation
Calladine, J., Crick, H. & Wernham, C. 2005. Development of methods for surveying and estimating population size of Short-eared Owls.
