For many years I have been involved in Muntjact control. I use a call, which is sometimed amazingly effective but more often no response. Muntjac of both sexes have bounded in so close and so quickly that there was no chance to safely shoot. On other occasions several would be barking furiously from cover. Having shot many and being well aware not to over-use calling, I know WHAT happens but haven't the foggiest idea as to WHY. Has anyone worked out a reliable system eg weather, season, wind or other as my success or lack of it seems entirely random and I am none the wiser!