Activity, social and sexual behaviour in Red Junglefowl selected for divergent levels of fear of humans
Fig 4
Frequency of ground pecks performed by males from the HF and LF selection lines during the first five minutes of the behavioural observation. Each dot represents the mean value over three recording sessions for one male. The horizontal lines show median values, the boxes show the upper and lower quartiles, and the vertical lines show the minimum and maximum values, excluding outliers.