In reply to Douglas Griffin:
In fairness to him this seems to be a issue that was discussed in a Q&A, rather than a policy statement. However...
In some specific instances, there might be a case for restricting access beyond the usual bird bans in order to protect particular species, but I don't think this is what Mr Hogg was proposing. Not least because I suspect that for all he might be a very experienced "countryman" he probably doesn't have the detailed knowledge to conserve, say, the bryophyte communities which are vulnerable to trampling and also
burning!
My entirely cynical view is that the animals and the vegetation (why do these people always use "flora and fauna" to suggest some sort of ecological credibility?) he wishes to protect are limited to a couple of examles of dwarf shrub and a particular ground nesting bird that depends on them. The red deer certainly aren't at risk from walkers, although they might not be where he left them when he turns up with a client.