Fig. 4From: Migration of the Western Marsh Harrier to the African wintering quarters along the Central Mediterranean flyway: a 5-year studyFlight altitude of Western Marsh Harriers during the day, recorded in 2014 in the Aspromonte mountain (Strait of Messina). The horizontal bold lines show the median flight altitude of each slot. The bottom and top of boxes show the 25 and 75 percentiles, respectively. The horizontal line joined to the box by the dashed line shows the maximum and the minimum range of the data. Points are outliersBack to article page