Terns on groynes & defaced Banksy

A check of the Lowestoft North Beach this evening, Wednedsay 18 August, revealed 37 Common Terns (my highest tally this summer) on groynes (north and south of Links road car apark) this evening with 8 immatures, little else. A perspex cover now put over the Banksy artwork, even though it has been completely defaced. A case of slamming the stable door after the horse has bolted? Pics show before (the 'inevitable' vandalism) and after (being daubed over with white paint & perspex covered) shots.