Brood movement and natal dispersal of hazel grouse Bonasa bonasia at Changbai Mountain were studied using radio telemetry in 1993–94. Most chicks hatched during late May to early June. Only hens accompanied three radio-tracked broods. After wandering for 30–35 days, broods 1 and 3 became relatively sedentary in second-growth forest, 1.6–1.7 km from their nests. Broods 1 and 3 disintegrated when chicks were 80 and 69 days old. Based on radio-tracking, it is suggested that the impetus for one brood's disintegration was that the hen left its brood. Female 2 lost her chicks about 20 days after hatching. The hens returned to their spring home ranges after brood dissolution. Three radio-marked chicks dispersed 4.8–5.7 km in mid-September. It is concluded that, in general, the hazel grouse is an active disperser in natural habitats.