Slaty-backed Gull
SPSlaty-backed Gull (Larus schistisagus), known in Korean as 큰재갈매기 has eligible documented records in 12 of South Korea's 17 first-level administrative regions in the current KoreAves evidence projection. The current supporting record sources are GBIF and EcoBank. These records document evidence coverage; regions without eligible records are not interpreted as biological absence, and the counts are not population or abundance estimates.