Hi guys, I'm worried about my hen Chardonnay. She's an Isa brown, unknown age as she was a rescue but she was laying when we adopted her 18 mths ago. Day before yesterday we noticed her walking funny - kind of sideways like she was drunk. She would do that for 30sec then walk normally. She was still eating and drinking and was in the nest box yesterday, so I assume she's still laying. I did a bit of googling on chickens walking strange, and it was said that it might be an effect of moulting. We brought her inside the house last night, and followed the advice of giving tuna with a multi-vitamin/mineral mixed in and ACV in her water. She ate all the tuna (loved it!). However, last night we noticed that her eyes are different. Her right eye looks fine, but her left pupil is tiny, and is horizontal. Googling this lead me to info on Marek's, including an awesome post on this site. As of this morning, we still have her isolated from her sisters in our backyard (the coop is over the other side of the property), and she seem a bit perkier. She seems to be walking more normally, not sideways but still quite gingerly like she doesn't have proper balance. Her tail is up higher than yesterday too, and she is still eating, drinking and scratching. Whether she is actually feeling better or just loving the time to herself and new environment, who knows! Does this sound like Marek's? I'm really really hoping not, as it doesn't sound good if it is. Also, what can we do for her? Is a trip to the vet warranted? Last night we decided we wouldn't take her as out of all of the possible options it sounded like she may have, they had no treatment anyway. We will keep giving her the vitamins and ACV, is there anything else? How often should we give her tuna? Would love any advice... I tried to take a photo of her eyes this morning but she was more interested in exploring her new surroundings and wouldn't keep her head still! Thanks heaps. Edited add: I forget to mention she also has a lot of grass in her poo, which I've never noticed before. I only noticed because she slept in the shower last night and I had to hose it out this morning, so for all I know grassy poo might be normal, but thought I should mention it!