Definition of parameters within "SkomerLandings" LandTime The time the attempted landing was recorded Day Data collection days are numbered Site The breeding site where the landing attempt was observed Success 1 is successful, 0 is unsuccessful Height Height bands were recorded from 1 to 4, as defined in the text Ledge Ledges were scored according to their size, with 1 being large, 2 long and thin, and 3 small ledges InstWs The wind speed in m/s as measured by the observed close to the breeding cliff WS_ms_bouy The wind speed in m/s as recorded from the mainland weather station (at 10 minute intervals) WindDir.Buoy The wind direction as recorded from the mainland weather station TI The turbulence intensity estimated with CFD models according to the specific breeding cliff and general wind direction