What a wonderful (icky!) coincidence. I JUST finished removing a mass of "concrete" from the back end of my New Hampshire Red hen. She's In-your-face friendly, so I rarely get to see her hind end unless I deliberately pick her up and flip her around. This was hidden in her floofy winter underfluff. It was the size of my thumb, rock hard and would have taken hours (and scissors) to remove with soaking. I tried gently pinching the bigger lumps with a pair of pliers and it worked like a charm! They crumbled into dust, leaving just a few tattered crmbs that came off easily in water. The littel bugger nearly fell asleep during the blowdrying process. She had a full crop, a warm breeze and a warmer lap. She was one happy lady. I could swear she purred!