Hi All-- After a long search about possible seizure disorders/twisted necks, etc. I came across some older threads about chickens intermittently running backwards with their heads tucked under and hope that those folks might be able to shed some new light on the problem now that it's been a few months. It best describes the new behavior of our Jersey Giant pullet who is now 8 weeks old. She's in a great pen with her little flock of newbies, all different breeds, who are fine. We've raised several groups over the years and have it set up so they really thrive--but we have NEVER had the sort of problems with new chicks that we're having this go-round. (One died inexplicably, one arrived dead on shipment, one suffered a sour crop but we got her over that.) In the past we always got our new groups of 10 chicks who did well and lived to a ripe old age!) This Jersey Girl tucks her head between her legs, acts as though she's preening her breast or scratching in the bedding, but then it escalates into running backwards with her head tucked, sometimes falling over with one or both feet clenched. It looks to me like some type of seizure activity and I wonder with her being a Giant, if she needs supplemental calcium/vits since she's growing so fast? (I only say this because I know parrots well and seizures are common in breeds with low blood calcium levels.) This comes and goes; all day yesterday she was fine until the evening when she really got going. This morning she's at it again, with periods in between of looking (mostly) normal; eating and drinking. I've been giving her the Vit E as suggested, also a few drops of liquid Calcium, a bit of crushed B vitamin and Electrolyes. I will pick up the baby vitamins and Selenium today and see if that helps. She is quite thin compared to the others, but no evidence of wet droppings, nasal/ocular discharge, breathing issues and she appears to be eating quite well. At first I was worried it might be contagious, however this is a closed group kept in a building where they would not be exposed to outside pathogens, except on the lowest level. It really looks like some neurological problem...? Thoughts? They are on the same (non-medicated) commercial Du-Mor chick starter that we've used with all our chicks, along with chick grit, some free-range chick kibble, and slow exposure to soil/grass/rocks/bugs from outside to increase their resistance to whatever might be lurking out there. First stool check done by the vet at two weeks (precautionary) showed no parasites/coccidia/Giardia. Not to say that they couldn't have picked some up from the outside logs, but it shouldn't be a heavy load. They're not stressed, have a nice big brooder pen with a good heat light, as well as natural light during the day. They're at about 70-75 degrees during the day at this point. Any advice would be appreciated! Thanks!