great black-backed gull, sitting on the trunk of an old fortress gun, covered with layers of bird droppings

bastion beak bird blackbacked cannon citadel conciliator covered droppings dung emblematic embrasure feather fortress great gull gun layers litter loophole makepeace manure mew muck nib old ordure pacificator pacificist pacifist peace peacemaker pecker plume presidio rump scat sea seagull sitting sky smoother stronghold symbolic symbolical tail token tower trunk wall wing