Males perch on substrates of different heights (rock = 5-15 cm, grass = 30-40 cm and tree = more than 1 m) in reproductive areas. In order to look for the possibility of male exclusion in these places, an analysis was made using male age and size. Older males were more aggressive and dominant in grass. These males had longer wings than younger ones, but no significant differences prevailed in abdominal and total length. This suggests a possible exclusion of younger males by older males.