There is a lot of red in there that looks bloody. Because of all of the white urates with no other stool material, I would be pretty suspicious of coccidiosis. You can get a stool sample checked for it, or start some Corid or amprollium in the water. How old are your chickens?
The dosage is 1.5 tsp per gallon of water for Corid powder. You can use fenbendazole at the same time if you give 1/4 ml per pound daily for 5 days orally, but I would probably do the Corid first, give some vitamins and probiotics for a few days, then use the fenbendazole. A simple fecal float...
I would check them out for any not eating, standing around lethargic and puffed up, or very weak. Those stools aren't from intestinal shed, but probably blood. I've never fed cranberries, so don't know if that would cause that color. I would probably go get some Corid powder and start it in the...