Young fellow. Scent marking the territory. Initially it was believed that the scent spray was a mixture of urine and anal fluid. However, these days the view is that it is not anal fluid. Some info about this can be found from an interview of Prof. Ratan Lal Bramhachari from the IndiaWilds Newsletter Vol. 7 Issue I http://www.indiawilds.com/diary/indi...vol-7-issue-i/