I'm a newbie to chickens (9 weeks), so want to get advice on how to proceed. I have Corid liquid but don't want to use in case it is just a case of one too many blueberries. First I'll answer the important questions, then tell the story lower in the post. 1) What type of bird , age and weight (does the chicken seem or feel lighter or thinner than the others.) Not sure which chick, all are acting normal. The poo in question was from the 9 week old chick area. Chicks grew up together from day 1. 2 Americauna/EEs, 2 Buff Orps, 1 Delaware, 1 Brown Leghorn. 2) What is the behavior, exactly. No change in behavior, some panting and fluffed feathers, but it has been really hot here and that is normally what they do when they are hot. It is not excessive. Eating and drinking normally. Behaving normal. 3) How long has the bird been exhibiting symptoms? Found suspicious red poop this morning on roost shelf. 4) Are other birds exhibiting the same symptoms? No other red poop today in run or coop. 5) Is there any bleeding, injury, broken bones or other sign of trauma. No 6) What happened, if anything that you know of, that may have caused the situation. Started outdoor access just over a week ago. Frozen blueberries as treats due to heat. 7) What has the bird been eating and drinking, if at all. Organic chick starter crumbles. Plain water from nipples. Occasional water from traditional mason jar waterer with electrolytes and probiotics. Frozen blueberries (2-4 per bird per day), some chopped ripe tomatoes, plain organic yogurt, chick grit. 8) How does the poop look? Normal? Bloody? Runny? etc. Poop in question was runny and red this morning, definitely looked like blood. Now has dried and is kind of reddish purple and looks like too many blueberries. 9) What has been the treatment you have administered so far? None 10 ) What is your intent as far as treatment? For example, do you want to treat completely yourself, or do you need help in stabilizing the bird til you can get to a vet? Treat myself, as my local vet is not super fluent in chicken. She can do egg binding and prolapse help, but not much beyond that in her words. I'm pretty good with 1st aid and my husband is not squeamish at all. 11) If you have a picture of the wound or condition, please post it. It may help. See pic of poop. Found around 7:30 this morning, pic from about 6pm. 12) Describe the housing/bedding in use. Indoor is pine shavings, deep litter method (although only about 4 weeks old, new shavings added each week & stirred). Outdoor run is enclosed, sandy soil that was dug up to line the bottom with hardware cloth about 10 days ago. Dirt is about 4-6 inches deep above hardware cloth. We have serious predators. Story: I've had the big girls 9 weeks since they were day old chicks. They moved to outdoor coop about a month ago, then added outdoor run about a week ago. Also this weekend 4 of the leghorns I was raising for a friend were transferred to her (left the nest as it were). About 2 weeks ago I ordered 4-5 week old chicks from McMurray hatchery and they are in a brooder setup in the storage area of my coop. Same building, I know not the best, but the chicks are from a very reputable hatchery. The peeps do not mix, but hand/air transfer is possible. This weekend was very hot, so I have been giving a few frozen blueberries as treats to help cool the girls off. Sunday was the last day of blueberries. Monday there was what looked like a very small piece of intestinal lining in the little girls brooder. I took it out and closely examined it and there were no worms, no abnormal behavior, and no repeats. Monday after the lining poop I gave everybody some yogurt that would eat it (the little girls haven't really figured out treats yet, so not all of them partook). The bigger girls LOVED the yogurt. Tuesday morning I found the suspect bloody/blueberry poop on the little roosting shelf in the bigger girls coop area. No repeat, no unusual behavior. If it were only 1 of the areas with no repeat and totally normal behavior I would probably wait and watch closely. But with the little girls intestinal lining poop one day and the big girls red poop the next I'm a little worried. Like I said, I have the Corid, and probiotic, and electrolyte, and yogurt. I'm ready to give any or all or none, I just don't want to miss something and have one of my girls suffer or worse, die from Coccidiosis.