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Your bird might have cocci.
This can be a fatal disease and is most often diagnosed in young chicks. Coccidiosis (also known as cocci) is caused by tiny creatures called coccidia, a kind of protozoa. They grow rapidly and spread fast. This germ spreading disease is very common. Protozoa live everywhere including inside chickens. However, in the case of coccidiosis the protozoa become to countless and make the chicks sick. There is not many ways to treat this. But, there are many ways to prevent it. Sadly, some chickens don’t live through coccidiosis because by the time it’s noticed, it’s too late. (Symptoms include: Weakness, lifelessness, pale combs and wattles, bloody droppings, not eating and sudden death.) The good news is if you know your flock and observe them daily, you can catch this early. Plus, if your bird lives through it, she won’t catch it again. The best treatments are amprolium and sulfa drugs and chorid 9.6% solution in the water.