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Violin plots showing (a) the proportion of prey items detected in the diet of Chew Valley reed warblers classed as aquatic or semi‐aquatic and (b) the average body length of prey (mm) detected in the diet samples, for adult, juvenile and nestling age classes subset by season; early = early summer, mid = mid‐summer and late = late summer. Means and standard errors for each factor level are displayed within the plot.
