Data from Robin migration and climate change

Variable name description: ID = ID for individual robins (progressive numbers); Lat2 = Latitude of the site where Robin was recovered during wintering; Lon2 = Longitude of the site where Robin was recovered during wintering; Lat1 = Latitude of the site where Robin was recovered during breeding; Lon1 = Longitude of the site where Robin was recovered during breeding; Year = Year when a robin was recovered in winter (from November of year i to February of year i + 1); Country = Country where a robin was observed during the breeding period; gridID = ID of the 2.5 ° lat x 2.5° lon cell where the robin was observed during the breeding period; Cluster = Cluster to which the robin belong, as assessed by migratory connectivity analysis; DistMig = migration distance calculated as the great-circle (orthodromic) distance between breeding and wintering position (km); CminT = temperature anomaly for the cell where the robin was observed breeding during the winter when it was recovered in winter (°C); CmaxTS = temperature anomaly for the cell where the robin was observed breeding during the summer when it was recovered in winter (°C); CminAT = temperature anomaly for the cell where the robin was observed breeding during the autumn when it was recovered in winter (°C); CminT1 = temperature anomaly for the cell where the robin was observed breeding during the winter preceding the one when it was recovered in winter; pop.index = population index in the country where a robin was observed breeding in the year when it was recovered in winter (index in the reference year = 0); Adult = whether a robin was adult or young when recovered in winter;