South Georgia shag Leucocarbo [atriceps] georgianus nest counts from two breeding colonies (North Point and Shagnasty Island) at Signy Island, South Orkney Islands from 1947-2020. Chick counts are also recorded at North Point.

Numbers of nesting birds were manually counted from images collected by low-altitude aerial photography from multirotor Un-crewed Aerial Vehicles (UAVs). Three species were included in this study; gentoo (Pygoscelispapua) and chinstrap (Pygoscelis antarctica) penguin and South Georgia shag (Leucocarbo atriceps georgianus). Data were collected in the 2016/17 and 2017/18 field seasons.

Images of bird colonies on Signy Island, South Orkney were collected by low-altitude aerial photography from multirotor Un-crewed Aerial Vehicles (UAVs). Three species were included in this study; gentoo (Pygoscelis antarctica) and chinstrap (Pygoscelis papua) penguin and South Georgia shag (Leucocarbo atriceps georgianus). Data were collected in the 2016/17 and 2017/18 field seasons. Mosaic images were created for colonies surveyed with multiple frames by stitching together individual images.