Sun, Y.-H. & Fang, Y. 1997: Notes on the natural history and behaviour of the Chinese grouse Bonasa sewerzowi. - Wildl. Biol. 3: 265-268.

The mating behaviour of Chinese grouse Bonasa sewerzowi at the Lianhuashan Natural Reserve in Southern Gansu Province was studied in 1995. Eleven birds were radio-marked during the breeding season. Pair formation began in late March. Males held territories of 1.8-3.2 ha (N = 3). The 'flutter-jump' behaviour was believed to be used by males for advertising territories and attracting females. It also could serve as a warning signal. Males competed for females in April and May, but not all males paired with females. Female-female aggression was not observed. The mating system of Chinese grouse was primarily monogamous, however, the possibility of polyandry or extra-pair copulations remains. In addition, female choice was believed to be the main factor affecting pair formation.

Key words: Bonasa sewerzowi, Chinese grouse, mating behaviour

Yue-Hua Sun & Yun Fang, Institute of Zoology, Chinese Academy of Sciences, Beijing 100080, People's Republic of China

Associate Editor: R.J. Gutiérrez