We have a flock of Cornish X chickens that are about 1 month old. Since first receiving them we have lost at least 4 to seizures. I will go out and check them and one will be laying on the ground, unable to walk, legs shaking and sporadically kicking the poor bird in circles. I tried separating it and trying to get it to drink or eat, but it can't even control head movement and none of them get better after this set in. I don't know what to do! Is this a disease? Is is just an issue that the breed has? Did I get a bad batch from the hatchery? I have tried searching online for these types of symptoms, but came up empty handed. Please help, I can't keep loosing birds, people have already ordered them!