AET_PET.xls - The water availability expressed as AET/PET (ratio of actual to potential evapotranspiration) in different parts of sub-Saharan non-breeding ranges of studied long-distance migratory bird species, in a given winter season (Sep-Apr). euring: EURING code of the species species name: species name season: the year corresponding to Jan-Apr months. The AET/PET values are measured in Jan-Apr of the year given in this column, and Sep-Dec of the previous year. Sahel AET/PET: average AET/PET in the Sahel part of the species' non-breeding range SahelAreaSqKm: the area of the Sahel part of the species' non-breeding range [square km] South AET/PET: average AET/PET in the part south of the Sahel of the species' non-breeding range SouthAreaSqKm: the area of the part south of the Sahel of the species' non-breeding range [square km] Total AET/PET: average AET/PET in the whole species' non-breeding range TotalAreaSqKm: the total area of the species' non-breeding range [square km]