Fig. 4From: Miniaturized multi-sensor loggers provide new insight into year-round flight behaviour of small trans-Sahara avian migrantsDistribution of the individual proportion of nocturnal flight activity for eurasian hoopoes (red, n = 5) and great reed warblers (blue, n = 13). Day and night was derived from the tag’s light sensor. The plots represent median, 50% quantile and rangeBack to article page