PERSPECTIVE MATTERS: COMPARING DRONE- AND VESSEL-BASED IMAGERY FOR SURVEYING CLIFF-NESTING SEABIRDS ALONG THE EAST CAITHNESS CLIFFS IN SCOTLAND.

When surveying colonies of cliff-nesting seabirds that are not safely visible from cliff tops, researchers may choose between hand-held vessel-based digital photography and drone imagery (uncrewed aerial vehicles, UAVs) to assess colonies on