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Number of visited patches for all food distributions (uniform (UN), slightly clumped (SC) and highly clumped (HC)). Mallards were foraging alone ((S) single trials) or together with a competitor ((P) paired trials). These latter results are also subdivided into dominants (Dom) and subordinates (Sub). Box plot shows median (line in box), interquartile range (box), 10th and 90th percentile (bars) and outliers (dots; data points outside the 10th and 90th percentiles)
