There appears to be a full version of Bob Roberts sings While Gamekeepers Lie Sleeping on Spotify but I won't provide the link as I'm pretty sure that whoever has put it up there is not entitled to do so.
Instead, I will point you to track 1 of Volume 18 of The Topic "Voice of The People" series - Songs of hunting and poaching - TO CATCH A FINE BUCK WAS MY DELIGHT: SONGS OF HUNTING & POACHING TSCD668