I found 2 last year but they were nothing like a 5 gallon bucket. They were roughly 30 inches long but coiled, not laid over each other, but sort of like a cinnamon role that wasn't completely rolled so that 30 inches or so was in an area 10 inches by 14 inches. Turds were coke-can diameter when fresh, probably 1-1/4 to 1-1/2 inches thick dried, and they were matte black in color suggesting either berries or meat diet. I'm going to say meat because there was a twist to them reminiscent of canine feces. There were no seeds visible. There was also no hair. If you ever look at a wolf turd, or the turd of a bear that's been scavenging carcasses, there's hair at the pointy end where they're pinched off. Definitely not present. It was suggestive of something that'd peeled the hide off of the meat first, then eaten it. That's not real normal for bear, canines, or felines. Truly don't know for sure. I have 4 cameras spending the winter in the area, within a mile or two, so maybe I'll get a picture of maker.
MIB