I have a 1 month old silkie chick that's pecking itself. It didn't fluff out like the others. When its feathers came in they look hard and sticky. Its walking backwards and running into stuff. It isn't gaining weight. When it walks backwards it looks like its picking at its leg feathers but not sure if that's what its doing. It picks at itself all the time. It is eating and drinking fine. It walks upright when it wants to. Out of 5 chicks it is the only one doing this. Is it some thing wrong with the chick or maybe bugs?