chicken walking like a drunk
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How old is she? Has she been laying lately? A penguin walk or reluctance to walk may happen with internal laying or egg yolk peritonitis. You can easily check for a stuck egg by inserting a gloved finger 1-2 inches inside the vent. Vitamin deficiency, dehydration, or Mareks disease could be some of the other possibilities for the wobbly walking.
The eye form of Mareks is only seen in certain cases of Mareks. The tumors which cause the eyes to become gray can be anywhere in the body, so some chickens may have paralysis, some have the eye form, while others may have growths on the skin or in the digestive tract. There can be a lot of weakness and stress when chickens molt, and they can look very sick. Hopefully it is just something temporary.