I hope this is nothing, but I am looking for a second opinion. We got a Houdan pullet about 6 or 7 weeks ago. I have read that this breed is friendly and tame, also very meek around other chickens. And that's the way she is. We quarantined her for the first four weeks, then she was out for a week or so with the others, but they picked on her, so since then she has been with one of our lowly roos who we keep isolated for his own protection. He and she fell in love, I wrote before about this. Anyway, they are in a pen together but we have noticed that she does not seem to be able to fly more than a couple of feet, and she cannot perch very well. She can't roost with him, can't hang on to the perch. She has always been this way. I think she can't see too well because of her crest, but you can see her eyes. When the roo tries to show her food on the ground, she acts like she's not sure what he's talking about. Today my son let both of them out together to stroll around the barn for half an hour or so, while he stayed out there to protect them. He says that when you gently push Moppit, (the Houdan) she will sometimes stumble and fall. She is very light weight, but not especially bony. She seems cheerful and not sick at all, talks all the time, but the stumbling and falling does not sound good to me. If you pick her up she will climb to your shoulder or arm and doesn't seem to have trouble holding on since she can clutch the material of whatever you're wearing. She has only laid one egg since we've had her, but that would be typical for this time of year and her age, I think. We also know that the hens she was with before we got her picked on her, because she had a small sore on her head when we got her, and a lot of her head feathers are just now starting to grow back. Could she have brain damage? Of course, the first thing that comes to mind is Marek's, but she doesn't seem to show any other symptoms. We don't have any experience with this breed..my son things she is just not very bright and not very coordinated, for some reason. Thoughts?