Lots of people getting grouse shooting and pheasant shooting mixed up here - both have environmental issues, but grouse aren't bred, reared and released.
It's a sad but unescapable fact that the rural economy in many areas is reliant on money from people who enjoy killing animals - however we can't go cold turkey on it, it needs to be a long process of withdrawal from this sort of activity, and a restructure to different types of land management and employment.
For the upland moors, soon water management and fire risk are going to become the dominant factors, followed by carbon storage and capture - however people whose identity is built around shooting birds and mammals for fun aren't going to give up without a long and bitter argument. And it's not all bad news - game management does provide some benefits in the current unnatural and precarious ecosystems we have, keeping some bird populations hanging on by a thread through control of predator species and some habitat management. There are so many factors that have resulted in us ending up in this manufactured landscape, we are going to have to gradually manage our way out of it and personally I think we will need to work with the moorland owners and managers to do that over a long period.
I've worked with gamekeepers on upland bird management (waders, hen harriers, SSO), and can never forget chatting with a keeper who spoke with knowledge, enthusiasm and real love about the snipe, and then followed it up with excitement about a future which might mean killing more of them each year. Such cognitive dissonance.
For a glimmer of hope, google the Langholm Moor Community Buyout.