In November, I had a uncommonly late hatch for my flock. My silkie/game mix hatched a single chick of her own, and because of the harsh New England weather conditions, we've kept her inside. The chick grew very healthy; s/he has perky eyes, is alert, and, up until last week, was up and about in the cage. I came home from a trip with some friends to New York, to find that the chick was walking funny. A few days later, the chick was unable to walk at all. It just lays there with its legs spread out, looking rather confused at its current predicament. The mother is not too interested in him/her anymore, but she doesn't attack the chick, and there are no signs of pecking. I'm getting very frustrated, as this same thing has happened a few times in my flock's history, usually to silky crosses, but not always related to the same family. Does anyone know what this might be? Is it a physical problem, or a genetic problem?