So that's the problem: 2 week old silkie chick walking in circles. The other 8 silkies hatched with it are fine. They are in brooder on pine shavings eating medicated chick feed only. I actually started giving them vitamins about a week ago, just because I thought vitamins would be a good idea. It's just the vitamin/electrolyte stuff you can get from Agway. I haven't given them anything else. I have read potential causes could be vitamin deficiency, especially thiamine when on medicated feed due to the amprolium. Or it could be neurological predisposition due to the vaulted skulls silkies have. The chick is not lethargic and appears to be eating and drinking. It just walks in circles. Any and all thoughts / experience helpful!! Thanks!