Figure 2From: Melatonin reduces migratory restlessness in Sylvia warblers during autumnal migrationMean (± sem) Zugunruhe (number of movements during 2-min periods) shown by blackcaps (A) and garden warblers (B) in the night following the melatonin treatment. There was a significant effect of the melatonin treatment and fat on Zugunruhe (see text and Table 1 for details). Numbers above columns indicate sample sizes.Back to article page