I think it is most likely neurological but what occurred to me is that it may be poor sight...it's almost like he is feeling in front of him with his feet with each step. Can you check the eyes of the ones that walk funny for any irregularity in iris colour or pupil shape and size. I think the high stepping may be linked to a depth perception problem. If you throw a bit of scratch down on the ground and watch them eat it, do they hit the target every time? Do they peck at the feeder harder than they need to? The ones that have gone to roost with empty crops.... are they the ones with the strange walk?
Legbars are one of the breeds that are more prone to Marek's in my experience but it would be unusual for several to be exhibiting the same "none classic" symptoms at this age. Also how many roosters and how many hens? Too many roosters can be a prime cause of stress and Marek's is triggered by stress. The lesions at the top of his legs could also be Marek's or he could have been caught in some wire or something and injured them.... maybe as a result of failing eyesight or poor balance.
I'm sorry I can't be clearer in my thinking or diagnosis.
Legbars are one of the breeds that are more prone to Marek's in my experience but it would be unusual for several to be exhibiting the same "none classic" symptoms at this age. Also how many roosters and how many hens? Too many roosters can be a prime cause of stress and Marek's is triggered by stress. The lesions at the top of his legs could also be Marek's or he could have been caught in some wire or something and injured them.... maybe as a result of failing eyesight or poor balance.
I'm sorry I can't be clearer in my thinking or diagnosis.
