Shooting hide at Old moor

Hi I was walking down the warbler way public footpath at Old Moor and was half way along was quite distressed to find a "den" created at the bottom of the slope -it was made from logs boards etc and had the name Shooters hide hanging as a title plaque-the track to it was clearly well used. As this is literally adjacent to the reserve which is an the other side of the bank i felt i ought to bring it to the attention of the reserve management--it looks for all the world like a hide that hunters would use obviously this needs investigation although I realise the actual site is probably not Rspb property.But any shooting there can not be legal.