Finally got the bloody diarrhea results back from the lab and my vet doesn't deal with birds so was unhelpful. I suspected coccidiosis and that's what they tested for (I think). Here are the results: Giardia (ELISA) Negative Isospora Oocysts 1+ (which supposedly means 2-4 eggs or parasites on the slide I think Isospora is Cocci, right? They deem 2-4 eggs or parasites as "few". Is that still a concern or do all chickens have a bit of these parasites normally? My girls (and boy) grew up on medicated feed and only switched to Layena and Flock Raiser about a month ago when the girls started to lay. At least one of them has bloody diarrhea (although I haven't seen any today so far). I had one dead hen four days ago but it could be completely unrelated. Two of my girls are acting a bit listless and standoffish but are still eating and drinking. I've only noticed the bloody diarrhea after the hen died. Does this test result mean my girls have Cocci? I made the vet give me some Albon (he didn't have Sulmet or Corrid) but I don't want to treat them if I don't have to. I also don't want to lose any more hens. Any guidance is greatly appreciated!