We got a 8 week old white leghorn pullet a few days ago, and we have her in a cage inside the house until she grows big enough to be outside with the flock. We got her on Thursday and since yesterday she's been having normal poop and bloody poop. The blood is not always present, but I just saw her take a dump with a rather large amount of blood on it. I thought it might be coccidiosis because I've read the symptoms and blood in stool is one of them, but the pullet is alert and eats very well. I don't know what could be causing the blood, but when my brother-in-law called the feed store he got the pullet from, he was told they have given their chickens some stuff that is causing the bloody stool, but that will go away in a few days. This is the first time we have chickens, so I'm not familiar with the diseases they can get and their symptoms, but does that explanation make sense? She was also given some scratch yesterday, but I told my nieces to stop giving her that and stick to the starter/grower crumbles because I don't think the pullet has had access to grit yet. Whatever she ate yesterday could be harming her insides, but I haven't seen her poop any big chunks of undigested food, her poop actually looks ok half of the time as she doesn't always poop blood.