Diurnal time-activity budgets of Grus nigricollis for the pre-laying phase in northern Tibet;

Through herding observation on the spot of the lucky nature reserve in the Inner Mongol picture, have studied the big bustard s domain behavior in breeding period.

It carried out observation for the territorial behaviour of Black-browed Reed Warbler in breeding period (incubation and feeding nestling),from May to July,1987 at Duling Forestry Centre, Huangnihe Forestry Bureau, Dunhua City, Jilin Province.

The survey on the population density in breeding season of Himalayan snowcock Tetraogallus himalayensis was conducted with total number count and line-transect census methods in Dongdashan and Yanchiwan Nature Reserve,Gansu Province,from April to July,2004 and 2005.

Characteristics of calls of Parus monticolus,including preserving territory,warning call,gathering call,alarming call,guarding call and young bird feeding call were studied with computer analysis during the breeding season in Pingshan County of Sichuan Laojunshan Nature Reserve by spectrographic analysis from April to June,2005.

From 1997 to 1998, the spatial pattern and its variations in this species in winter and breeding seasons, as well as its relation to habitat structure, were studied in Wulushan Nature Reserve of Shanxi Province, Ch.

Spawning period of the scallops started in early April and ended in early May around Zhangzi Island,Da Changshan Island and Guanglu Island,and peaked during April 15～25.