A drone flies forward above a forest canopy of native birch trees in full autumn colour and a wall of non-native conifers in a forestry plantation set amongst a hilly landscape

glen orchy scotland downy birch forestry silver birch habitat aerial drone footage woodland woodland creation birch deciduous landscape betula pubescens betula trees plantation forest biodiversity mountains ecology autumn hill canopy nature fall drone wood timber remote tree restoration patchwork leaves mosaic 4k regeneration isolated colour climate change restore wild natural green change native diverse yellow reveal tilt