Behavioral development of the juvenile siberian crane

From October 2012 to May 2013,juvenile Siberian Cranes( Grus leucogeranus) were studied by the focal sampling method at Momoge National Nature Reserve in Jilin Province and Poyang Lake National Nature Reserve in Jiangxi Province,China. The results showed that the juvenile Siberian Cranes spent 23. 0% of their time budget on feeding in the fall migration,increasing to 82. 7% in late winter,but reduced to 61. 9% in the following spring at Momoge National Nature Reserve. In comparison,the begging behavior reduced from 58. 2% in the fall migration to 1. 2% in the following spring migration,and the alert behavior increased from 1. 0% to 7. 1%. The behaviors of preening and resting in the following spring were significantly more than those in the wintering period,the reason for the difference may come from the different food availability. For environmental factors,wind velocity had a significant impact on resting behavior,while temperature was positively correlated with feeding and alert behaviors. The daily activi