Subrata, I have had similar problems. Mentally I came up with a strategy that I'm just starting to implement. I recently bought a new Reconyx HC600 and I'm hoping to catch a few pictures of the buck(s) I'm chasing. My idea is to find out which directions the deer are coming from and based on the time of day determine if they are heading to their beds or a place to feed. Based on this information, I will find out the direction their bed is in. I will then move the camera my next time out 20-30 yards closer to their beds. If I get another picture of the deer, then I will again determine the direction they are coming from and move the camera another 20-30 again. Hopefully after each time I move the camera I will get closer to their bedding areas and the times they passing the camera will be closer to legal shooting hours.