Bird Study, 2016 Staff Author(s) Citation Pearce-Higgins, J.W., Wright, L.J., Grant, M.C. & Douglas, D.J.T. 2016. The role of habitat change in driving Black Grouse Tetrao tetrix population declines across Scotland. Bird Study doi:10.1080/00063657.2015.1134439 Staff author(s) James Pearce-Higgins Lucy Wright