Hey all, So we got 5 new birds last week from someone a few towns over. I didn't think they looked as healthy as my birds, but I'm really new to chicken keeping. I wanted to keep them segregated from our flock for 2 weeks to make sure they were healthy, but we got about 2 feet of snow the day before we were scheduled to pick them up which made creating their enclosure and temporary housing impossible. My husband convinced me to just go ahead and put them in with our group, insisting that he thought they looked fine. Then today, when I went out to refill the water I saw one of them poop foamy yellow droppings. I've never seen that with my girls so I looked around and saw several more similar deposits around the yard. I started reading on this site and on-line and it seems this would indicate either Blackhead or Coccidiosis. The trouble is, I'm having a really hard time figuring out how to determine which it is. The treatment is not the same for both, and I don't want to over medicate. Also, do I treat my whole flock at this point due to exposure, or just the new birds? My birds were so healthy before we brought in the newbies; now I'm so worried! Any help would be much appreciated!