@techreport{Humphreys-2015-959, author = {Humphreys, E and Cook, S and Burton, N}, title = {Collision, Displacement and Barrier Effect Concept Note}, institution = {British Trust for Ornithology (BTO)}, year = {2015}, month = {jan}, number = {BTO Research Report No. 669}, url = {https://www.bto.org/our-science/publications/research-reports/collision-displacement-and-barrier-effect-concept-note}, keywords = {Wind Energy, Fixed Offshore Wind, Attraction, Avoidance, Collision, Displacement, Birds, Human Dimensions}, }