Numbers in front of rifle butts

This week a set of large, plate metal numbers, 1 to 7, have been erected on top of the protection wall in front of the butts, on top of each number are small birds and animals, see photos.

The numbers are facing the tip bur are hidden by tall grass and brambles, assume work is still on going, but as usual there are no signs to say what, why and by whom.

Bob and Bri